CompTIA 220-1202 A+ Certification Exam: Core 2 Dumps and Practice Test Questions Set 4 Q61-80

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Q61) A user reports that their Windows 10 computer frequently displays a “Low Disk Space” warning on the C: drive. Which of the following is the BEST course of action to resolve this issue?

A) Delete unnecessary files and run Disk Cleanup
B) Upgrade the CPU
C) Update the graphics driver
D) Replace the RAM

Answer: A) Delete unnecessary files and run Disk Cleanup

Explanation:

A “Low Disk Space” warning occurs when a storage volume is running critically low on available free space. This affects system performance because Windows relies on free disk space for virtual memory, temporary files, page files, and updates. When space is limited, system responsiveness decreases, applications may fail to open, and Windows updates cannot install.

Option A) is correct because deleting unnecessary files and running Disk Cleanup is the most immediate and effective solution. Disk Cleanup identifies temporary files, system cache, log files, and other non-essential data that can be safely removed to free space. Users can also remove old system restore points, uninstall unused programs, and transfer large personal files to external storage. Combining these measures ensures sufficient free space for optimal system operation.

Option B) Upgrading the CPU does not address low disk space. The CPU affects processing speed, not storage capacity, and will not resolve warnings or performance issues caused by a full disk.

Option C) Updating the graphics driver improves display performance or resolves visual issues but does not affect available storage space. While driver updates are important for stability, they do not address disk capacity problems.

Option D) Replacing RAM enhances system memory and can improve multitasking, but insufficient free disk space will still cause system performance issues. RAM and disk space are separate resources, and adding RAM does not mitigate storage shortages.

A systematic approach includes first analyzing disk usage using tools like Storage Sense or third-party disk analyzers, removing non-essential files, and then considering upgrades such as adding a secondary storage drive or replacing the existing drive with a higher-capacity SSD. Maintaining at least 10–15% free disk space is recommended to prevent performance degradation and ensure smooth system operations.

Q62) A user reports that their Windows 10 computer is unable to boot after a recent update. Which of the following tools should the technician use FIRST to attempt recovery?

A) Windows Recovery Environment (WinRE)
B) Device Manager
C) Disk Cleanup
D) Task Scheduler

Answer: A) Windows Recovery Environment (WinRE)

Explanation

 When a Windows 10 computer fails to boot after an update, the Windows Recovery Environment (WinRE) provides the first line of defense. WinRE includes tools for troubleshooting startup issues, performing system restores, accessing safe mode, and repairing boot configuration data (BCD). Using WinRE allows technicians to attempt recovery without requiring a full reinstallation of the operating system.

Option A) is correct because WinRE provides access to multiple recovery options. Common actions include:

Startup Repair: Automatically fixes boot-related problems caused by corrupted system files.

System Restore: Reverts the system to a point before the update, undoing recent changes that may have caused the boot failure.

Command Prompt: Allows advanced troubleshooting, including repairing boot records, checking disk integrity, and manually removing problematic updates.

Option B) Device Manager is used to manage hardware drivers and troubleshoot device conflicts, but it cannot be accessed if the system does not boot. It is ineffective in this scenario until the operating system loads.

Option C) Disk Cleanup helps reclaim disk space and remove temporary files but does not repair boot failures caused by updates or corrupted system files. Using Disk Cleanup in this scenario is not applicable.

Option D) Task Scheduler automates tasks such as running scripts or maintenance routines, but it is irrelevant for boot recovery. Task Scheduler cannot repair corrupted system files or restore the operating system to a functional state.

After accessing WinRE, the technician can attempt startup repair first, and if unsuccessful, perform a system restore or use advanced commands such as “sfc /scannow” or “chkdsk” to repair corrupted files. Using WinRE minimizes data loss and reduces the need for complete reinstallation, making it the most efficient first step in recovery.

Q63) A technician is configuring a new Windows 10 computer to allow remote assistance from IT support staff. Which of the following features should be enabled?

A) Remote Desktop or Quick Assist
B) BitLocker
C) Windows Firewall
D) Device Encryption

Answer: A) Remote Desktop or Quick Assist

Explanation:

Remote assistance enables IT staff to access and troubleshoot a user’s computer from a different location. Windows 10 provides Remote Desktop for direct connections and Quick Assist for temporary remote support sessions. These tools allow IT to diagnose issues, install software, configure settings, and assist users without being physically present at the workstation.

Option A) is correct because enabling Remote Desktop or Quick Assist facilitates secure and efficient remote support. Remote Desktop allows authorized users to log in with credentials and access the full desktop environment, while Quick Assist enables temporary sessions initiated by the user to grant IT support access. Proper configuration includes verifying network connectivity, user permissions, and firewall rules to allow remote connections while maintaining security.

Option B) BitLocker encrypts the hard drive to protect data but does not enable remote assistance. While BitLocker enhances security, it is unrelated to providing remote access to IT staff.

Option C) Windows Firewall protects the system by blocking unauthorized network traffic. While firewall settings may need adjustment to allow remote connections, simply enabling the firewall does not provide remote support functionality. The primary feature required is a remote access tool.

Option D) Device Encryption secures the contents of the computer but does not enable remote assistance. Encryption ensures data confidentiality but does not provide remote connectivity or management.

After enabling remote access tools, IT staff should educate users on session initiation, authentication, and privacy. Secure configurations include requiring strong passwords, limiting access to authorized personnel, and logging remote sessions for auditing purposes. These measures balance support efficiency with security.

Q64) A user reports that their Windows 10 laptop is not detecting an external monitor connected via HDMI. Which of the following should the technician check FIRST?

A) Display settings and multiple monitor configuration
B) Hard drive free space
C) BIOS password
D) Screen saver settings

Answer: A) Display settings and multiple monitor configuration

Explanation:

 When an external monitor is not detected via HDMI, the issue is often related to display settings rather than hardware failure. Windows 10 allows users to configure multiple displays, including duplicating, extending, or displaying on a single monitor. If the external monitor is not recognized, the system may require adjustments in display settings to detect and activate the connected device.

Option A) is correct because checking the display settings ensures the external monitor is enabled and properly configured. The technician should right-click the desktop, select Display Settings, and click “Detect” to identify connected monitors. The settings allow users to choose display modes such as Extend, Duplicate, or Second Screen Only. Additionally, verifying the correct input source on the monitor itself ensures proper detection.

Option B) Hard drive free space does not impact the detection of an external monitor. Storage availability affects system performance and file operations but is unrelated to video output.

Option C) BIOS password is relevant for hardware security but does not control operating system detection of display devices. While BIOS may provide video initialization settings, the issue described occurs within Windows and is unrelated to passwords.

Option D) Screen saver settings affect idle display behavior but do not interfere with external monitor detection. Screen savers are software-level visual effects and cannot prevent Windows from recognizing connected displays.

If display settings do not resolve the problem, the technician can verify the HDMI cable, test the monitor with another device, update graphics drivers, and ensure the correct video output port is used. This systematic approach isolates software and hardware issues and restores proper multi-monitor functionality.

Q65) A user reports that their Windows 10 computer is experiencing frequent high CPU usage. Task Manager shows that “Antimalware Service Executable” is using significant resources. Which of the following BEST describes the situation?

A) Windows Defender is performing a system scan
B) The system is infected with malware
C) The hard drive is failing
D) The display driver is outdated

Answer: A) Windows Defender is performing a system scan

Explanation

 The “Antimalware Service Executable” process (MsMpEng.exe) is part of Windows Defender, the built-in antivirus and anti-malware solution in Windows 10. High CPU usage by this process is typically observed during active system scans, background updates, or real-time protection operations. The process temporarily consumes more resources to ensure thorough scanning and protection against potential threats.

Option A) is correct because the high CPU usage corresponds to normal Windows Defender behavior. Scans check files, running processes, and system components for malware. The system may slow during scans, but this is expected. Users can schedule scans during off-hours, limit resource usage in Windows Defender settings, or temporarily pause scans if immediate performance improvement is required.

Option B) While malware can also consume CPU resources, the specific process identified is a legitimate system component. High usage in Task Manager alone does not indicate infection unless accompanied by other unusual behaviors or detected threats. Scanning with Windows Defender or a secondary antivirus tool can confirm system integrity.

Option C) Hard drive failure may cause slow read/write speeds or errors, but it does not result in high CPU usage attributed to “Antimalware Service Executable.” Hardware issues would manifest differently, such as disk errors or system crashes.

Option D) Outdated display drivers affect graphics rendering but are unrelated to CPU usage by Windows Defender. Driver issues may cause display artifacts or video performance degradation but do not trigger antivirus scans or high CPU consumption by security services.

Proper troubleshooting involves confirming that Windows Defender is performing scheduled scans, verifying the system is free of threats, and educating users on resource management. Scheduling scans during non-peak hours or enabling Windows Defender’s performance optimization options ensures protection without unnecessarily impacting system responsiveness.

Q66) A user reports that their Windows 10 laptop is unable to join the corporate domain after a recent update. Other users on the same network can join without issues. Which of the following should the technician check FIRST?

A) Network connectivity and domain credentials
B) Hard drive free space
C) Monitor resolution
D) Screen saver timeout

Answer: A) Network connectivity and domain credentials

Explanation:

When a single laptop cannot join a corporate domain while others can, the issue is typically local to the device or account. Domain membership requires proper network connectivity, access to domain controllers, and valid user credentials. If any of these elements are misconfigured, the laptop cannot authenticate and join the domain.

Option A) is correct because checking network connectivity ensures that the laptop can reach the domain controller, verify DNS resolution, and communicate with necessary ports for domain operations. Verifying domain credentials confirms that the user has sufficient permissions to join devices to the domain. Common troubleshooting steps include: pinging the domain controller, checking DNS settings, ensuring the firewall does not block required ports, and confirming the account has join rights.

Option B) Hard drive free space affects system performance but does not prevent domain joining. Storage constraints may slow certain processes but are unrelated to authentication and domain membership.

Option C) Monitor resolution impacts display clarity but has no effect on domain join operations. Display settings cannot block network authentication.

Option D) Screen saver timeout controls how long the display remains active but does not interfere with domain connectivity or authentication.

Once network connectivity and credentials are confirmed, the technician may also verify the laptop’s time and date settings because significant discrepancies can prevent domain authentication due to Kerberos ticket validation. By addressing connectivity and credentials first, the technician ensures the root cause is identified efficiently.

Q67) A user reports that their Windows 10 PC cannot detect an external USB storage device. Other USB devices work properly. Which of the following should the technician check FIRST?

A) Device Manager for missing or malfunctioning drivers
B) Hard drive free space
C) BIOS version
D) Screen resolution settings

Answer: A) Device Manager for missing or malfunctioning drivers

Explanation:

hen a USB storage device is not detected while other USB devices function correctly, the issue often lies with drivers or recognition of the specific device. Windows relies on drivers to communicate with connected hardware, including USB storage. If the driver is missing, outdated, or corrupted, the device will not appear in File Explorer, even if the physical connection is functional.

Option A) is correct because checking Device Manager identifies devices with driver issues, indicated by yellow warning icons or “Unknown Device” entries. The technician can update or reinstall drivers for the specific USB device or generic USB storage controllers. Verifying that the device works on another computer helps isolate whether the problem is hardware-related or specific to the workstation’s configuration.

Option B) Hard drive free space affects the storage capacity of the system but does not prevent detection of a USB device. Even a nearly full drive does not stop the operating system from recognizing external devices.

Option C) BIOS version controls hardware initialization at startup but typically does not prevent detection of USB storage devices once Windows has loaded. Unless USB ports are disabled in BIOS, this is unlikely to be the cause.

Option D) Screen resolution settings affect display output but have no impact on hardware detection or USB device recognition.

After verifying Device Manager, the technician may also check USB port functionality, test the device on a different port, or inspect the cable for physical damage. Ensuring the proper driver is installed restores detection and usability of the USB storage device.

Q68) A user reports that their Windows 10 system frequently freezes when opening multiple applications. Task Manager shows 100% disk usage. Which of the following is the MOST likely cause?

A) A nearly full or failing hard drive
B) Outdated display driver
C) Incorrect time settings
D) Low screen resolution

Answer: A) A nearly full or failing hard drive

Explanation:

When disk usage reaches 100% and the system frequently freezes, the primary suspect is a nearly full or failing hard drive. Windows relies on available disk space for virtual memory, paging files, and temporary operations. If the disk is almost full or if the drive is failing, read/write operations slow dramatically, causing system freezes and application delays.

Option A) is correct because both storage capacity and drive health directly affect disk usage and system responsiveness. The technician should check free space, run disk diagnostics, and consider replacing the drive if SMART data indicates impending failure. Cleaning unnecessary files and defragmenting HDDs (or optimizing SSDs) can improve performance temporarily.

Option B) Outdated display drivers may cause visual glitches or poor rendering but do not cause 100% disk usage. While graphics performance may degrade, freezing due to disk bottlenecks is unrelated.

Option C) Incorrect time settings affect authentication, scheduled tasks, or certificates but do not cause high disk usage or system freezes.

Option D) Low screen resolution affects display clarity but does not impact disk performance or CPU utilization.

After diagnosing the disk, the technician can optimize the system, enable Windows performance monitoring, and schedule routine maintenance to prevent future high disk usage. Upgrading to an SSD may significantly improve performance for systems experiencing persistent 100% disk utilization.

Q69) A technician is troubleshooting a Windows 10 laptop that cannot connect to a corporate VPN. Other devices on the same network connect successfully. Which of the following should be checked FIRST?

A) Local firewall or antivirus software
B) ISP service status
C) Physical Ethernet cables
D) Monitor resolution settings

Answer: A) Local firewall or antivirus software

Explanation:

When a single device cannot connect to a VPN while other devices function normally, the problem is likely local to that device. Firewalls or antivirus software on the laptop may block VPN ports or filter encrypted traffic, preventing the VPN client from establishing a connection. This issue is common, particularly when security software automatically blocks unfamiliar outbound connections.

Option A) is correct because checking local firewall or antivirus settings addresses the most common cause of device-specific VPN failures. The technician should verify that the VPN client is allowed through the firewall, temporarily disable security software for testing, and configure exceptions if necessary. Ensuring the VPN client is up to date and using the correct protocol also supports connectivity.

Option B) ISP service status affects all devices; since other devices can connect successfully, this is unlikely to be the issue.

Option C) Physical Ethernet cables are irrelevant if the user is connecting via Wi-Fi. Even if a wired connection is used, other devices working normally indicate that cables are functioning correctly.

Option D) Monitor resolution settings have no impact on network or VPN connectivity.

After verifying local security settings, the technician may also check VPN client logs for error messages and confirm correct authentication credentials. Addressing firewall and antivirus restrictions first allows targeted troubleshooting without affecting network infrastructure.

Q70) A user reports that their Windows 10 laptop is running slowly after installing several new applications. Which of the following is the MOST likely cause?

A) High CPU and memory usage from multiple startup applications
B) Incorrect screen resolution
C) Outdated BIOS
D) Disabled system restore

Answer: A) High CPU and memory usage from multiple startup applications

Explanation:

When a system slows down after installing multiple applications, the most common cause is resource consumption by startup applications and background processes. Many applications automatically add themselves to startup, consuming CPU, memory, and disk resources immediately upon login. This can significantly reduce system responsiveness, especially on laptops with limited RAM or slower storage.

Option A) is correct because high CPU and memory usage from numerous startup programs directly affects system performance. The technician should review startup applications using Task Manager or MSConfig, disable non-essential programs, and monitor resource usage. Regular maintenance, such as uninstalling unnecessary software and updating existing programs, can prevent performance degradation.

Option B) Incorrect screen resolution affects display clarity and scaling but does not cause system slowness. While graphics-intensive applications may use more resources at higher resolutions, startup applications are a more likely source of slowdowns in this scenario.

Option C) Outdated BIOS may cause compatibility issues or affect hardware initialization, but it does not immediately impact performance after installing new applications unless specific firmware-related conflicts exist.

Option D) Disabled system restore prevents recovery points but does not directly affect CPU or memory usage. Slowness is caused by active processes rather than recovery mechanisms.

After addressing startup applications, the technician may also check for background services, scheduled tasks, and resource-intensive processes that are unnecessary. Optimizing startup programs and background services improves boot times, responsiveness, and overall system performance without hardware upgrades.

Q71) A user reports that their Windows 10 PC is showing frequent “Unresponsive Program” messages when running multiple applications simultaneously. Task Manager shows very high memory usage. Which of the following is the MOST likely cause?

A) Insufficient RAM installed on the system
B) Outdated display driver
C) Low screen resolution
D) Incorrect system time

Answer: A) Insufficient RAM installed on the system

Explanation:

When a Windows 10 PC shows frequent “Unresponsive Program” messages and Task Manager indicates high memory usage, the system is likely running out of available RAM. RAM (Random Access Memory) is used to store data for active applications and processes. If the installed RAM is insufficient for the workload, the system resorts to paging memory to the hard drive, which is significantly slower. This results in unresponsive programs, slow performance, and frequent freezes.

Option A) is correct because insufficient RAM is the primary cause of memory-related performance issues. The technician can confirm this by monitoring memory usage in Task Manager and checking physical RAM capacity. Solutions include upgrading the system’s RAM, closing unnecessary background applications, or adjusting virtual memory settings to optimize paging file usage.

Option B) Outdated display drivers affect graphics performance and may cause visual glitches or application crashes, but they do not directly cause high memory usage or frequent “Unresponsive Program” messages.

Option C) Low screen resolution affects display quality but does not impact memory consumption or system responsiveness. It may slightly reduce GPU workload but is unrelated to RAM exhaustion.

Option D) Incorrect system time affects scheduled tasks, authentication, or certificate validation but does not result in high memory usage or program unresponsiveness.

A systematic approach involves monitoring resource usage, identifying memory-intensive applications, and ensuring adequate RAM is installed. Using performance monitoring tools and optimizing startup programs can prevent memory exhaustion and improve system stability, especially for systems running multiple applications simultaneously.

Q72) A technician is troubleshooting a Windows 10 computer that fails to start after a recent driver update. Which of the following steps should the technician perform FIRST?

A) Boot into Safe Mode and uninstall the problematic driver
B) Replace the hard drive
C) Reset the BIOS to default settings
D) Disable the firewall

Answer: A) Boot into Safe Mode and uninstall the problematic driver

Explanation:

 When a Windows 10 computer fails to start after a driver update, Safe Mode is the recommended first step. Safe Mode starts Windows with a minimal set of drivers and services, bypassing drivers that may cause startup issues. This allows the technician to uninstall or roll back problematic drivers without affecting other system components.

Option A) is correct because booting into Safe Mode isolates the system from the faulty driver, allowing the technician to safely remove or update it. Steps include pressing F8 or holding Shift while selecting Restart, accessing Advanced Boot Options, and selecting Safe Mode. Once in Safe Mode, Device Manager can be used to uninstall the driver or roll back to a previous version.

Option B) Replacing the hard drive is unnecessary because the failure is caused by a software driver conflict, not hardware damage. Replacing the drive does not address the root cause.

Option C) Resetting the BIOS to default settings may help with hardware configuration issues but is unrelated to driver-induced startup failures. BIOS settings typically do not control Windows driver loading.

Option D) Disabling the firewall is unrelated to a driver update issue. The firewall protects network traffic but does not prevent the system from booting.

After uninstalling the problematic driver in Safe Mode, the technician can restart normally, reinstall the correct driver, or use a driver update utility to ensure compatibility. Safe Mode provides a controlled environment to troubleshoot driver conflicts while minimizing risk to the operating system.

Q73) A user reports that their Windows 10 PC cannot connect to a network printer. Other network devices can print without issues. Which of the following should the technician check FIRST?

A) Printer permissions and user access rights
B) Hard drive free space
C) Screen resolution
D) BIOS version

Answer: A) Printer permissions and user access rights

Explanation

When a single user cannot print to a network printer while others can, the problem is often related to permissions. In Windows environments, printer access is controlled by user or group permissions. If the user lacks the “Print” permission or has restricted access, print jobs cannot be submitted successfully.

Option A) is correct because checking the printer’s permissions and user access rights directly addresses the most common cause of the issue. The technician should review the printer properties, Security tab, and ensure the user or their Active Directory group has appropriate access. Adjusting permissions or adding the user to the correct group restores functionality.

Option B) Hard drive free space affects local document storage and spool files, but if the user has sufficient space and other devices print normally, this is not the primary issue.

Option C) Screen resolution affects display clarity but has no impact on network printer connectivity.

Option D) BIOS version controls hardware initialization and system firmware but does not affect operating system-level printer permissions.

Once permissions are verified, the technician may also check the client’s printer driver, restart the print spooler service, and confirm network connectivity to the printer. Addressing permissions first ensures minimal disruption to other users and resolves access-related problems efficiently.

Q74) A user reports that their laptop’s battery drains rapidly, even when not in active use. The device also becomes unusually warm. Which of the following is the MOST likely cause?

A) Background applications consuming resources
B) Faulty motherboard
C) Cracked display
D) Incorrect BIOS settings

Answer: A) Background applications consuming resources

Explanation:

Rapid battery drain and excessive heat in laptops are often caused by background applications or services running continuously. Apps that perform frequent updates, sync data, or access the internet can keep the CPU and other components active, generating heat and consuming power. This behavior occurs even when the laptop is idle.

Option A) is correct because monitoring and managing background applications addresses the most common cause of battery drain and heat. Tools like Task Manager or Resource Monitor can identify high-usage processes. Disabling unnecessary background apps, adjusting sync settings, or enabling battery saver mode reduces CPU usage and heat generation.

Option B) A faulty motherboard can cause power issues, but symptoms usually include failure to boot or random shutdowns rather than continuous battery drain due to normal system activity.

Option C) A cracked display may affect visuals but does not contribute to battery consumption or device heating.

Option D) Incorrect BIOS settings may affect boot order, CPU performance, or power management features, but the primary cause of excessive battery usage in this scenario is active software running in the background.

After identifying resource-intensive applications, the technician can optimize startup programs, reduce unnecessary notifications, and configure power plans for energy efficiency. Educating the user about software behavior and battery-saving strategies further extends runtime and prevents overheating.

Q75) A Windows 10 laptop is frequently freezing and running slowly. Task Manager shows high disk usage by the process “Windows Modules Installer Worker.” Which of the following BEST explains this behavior?

A) The system is installing or checking for Windows updates
B) The hard drive is failing
C) Malware infection
D) Outdated display driver

Answer: A) The system is installing or checking for Windows updates

Explanation:

 “Windows Modules Installer Worker” (TiWorker.exe) is a legitimate Windows process responsible for installing, modifying, or removing Windows updates. High CPU or disk usage by this process is common during update scans or installations. The system may appear to freeze or run slowly until the update process completes.

Option A) is correct because the high resource usage corresponds to normal background operations performed by Windows Update. Task Manager displays spikes in CPU or disk usage during these processes. Users may experience temporary slowdowns, but this activity ensures the system remains secure and up-to-date. Scheduling updates during off-hours or allowing the process to finish resolves the issue without intervention.

Option B) A failing hard drive may cause system freezes, read/write errors, or crashes, but in this scenario, the process consuming resources is a known system process, not a symptom of hardware failure.

Option C) Malware infection can cause high CPU usage, but identifying the process as “Windows Modules Installer Worker” confirms legitimate activity unless unusual behavior persists. Running antivirus scans can rule out infection if the user remains concerned.

Option D) Outdated display drivers affect graphics performance but do not cause the CPU or disk usage spikes associated with Windows Update processes.

Monitoring the system and allowing Windows Update to complete ensures security patches are applied. If performance issues are severe, scheduling updates for periods of inactivity, temporarily pausing updates, or using performance monitoring tools can help balance system responsiveness with timely updates.

Q76) A user reports that their Windows 10 laptop cannot connect to any wireless networks, but other devices on the same network work fine. Which of the following is the MOST likely cause?

A) Wireless adapter is disabled or malfunctioning
B) The ISP is experiencing an outage
C) Ethernet cable is unplugged
D) Monitor resolution is set incorrectly

Answer: A) Wireless adapter is disabled or malfunctioning

Explanation:

When a Windows 10 laptop cannot connect to wireless networks while other devices on the same network function normally, the problem is almost always local to the device itself. The wireless adapter is the primary hardware responsible for communicating with Wi-Fi networks. If the adapter is disabled in software or suffers from a hardware fault, the system will be unable to detect or connect to any wireless networks. Wireless connectivity problems can occur due to driver corruption, configuration errors, physical damage to the adapter, or a disabled wireless card either through Windows settings or physical switches on the laptop.

Option A) is correct because a disabled or malfunctioning wireless adapter directly prevents the laptop from connecting to Wi-Fi networks. To verify this, the technician should open Device Manager to check the status of the network adapter. If a yellow warning triangle appears or the adapter is missing entirely, this indicates a driver issue or hardware failure. The technician can attempt to update or reinstall the driver. If the adapter is disabled in Windows (either through software or a function key toggle), enabling it will restore connectivity. Additionally, checking the laptop for any physical wireless switch and ensuring it is turned on is critical, as some models have hardware toggles that override software settings. Running the Windows Network Troubleshooter may also reveal issues with the adapter or its configuration, suggesting steps to repair or reset the network connection. In some cases, resetting the network stack using commands such as “netsh winsock reset” and “netsh int ip reset” helps resolve persistent configuration problems.

Option B) ISP outage affects all devices connected to the network. Since the user reports that other devices connect without issue, the ISP is not the root cause. Troubleshooting ISP-related issues is only necessary if multiple users are impacted or there are widespread connectivity problems.

Option C) Ethernet cable issues do not affect wireless connectivity. The laptop may have a built-in Ethernet port, but unplugging the cable does not prevent Wi-Fi connections. Ethernet problems only impact wired connections.

Option D) Monitor resolution does not affect network hardware or wireless connections. While low resolution may affect display quality, it does not prevent Wi-Fi connectivity.

After confirming the wireless adapter’s functionality, the technician should verify the network SSID and password, ensure that the correct security type is selected (e.g., WPA2), and check for interference from other devices or nearby networks. If the adapter is physically damaged, replacing it may be necessary. Ensuring drivers are up to date helps maintain compatibility with modern network standards. Documenting these steps provides a structured troubleshooting approach for future incidents.

Q77) A user reports that their Windows 10 computer is running slowly after installing multiple third-party applications. Task Manager shows several applications consuming significant CPU and memory. Which of the following is the MOST likely cause?

A) Excessive startup programs and background processes
B) Hard drive failure
C) Incorrect monitor resolution
D) Disabled firewall

Answer: A) Excessive startup programs and background processes

Explanation:

When a Windows 10 computer experiences sluggish performance following the installation of multiple third-party applications, the most common cause is excessive resource consumption by startup programs and background processes. Windows starts several services and applications automatically upon login. Each additional program that runs in the background consumes CPU, memory, and disk resources. This resource utilization can be particularly impactful on laptops or desktops with limited RAM, slower CPUs, or conventional hard drives instead of SSDs. When multiple applications compete for resources simultaneously, Task Manager will show high CPU and memory usage, and the system may freeze, respond slowly, or fail to launch new applications promptly.

Option A) is correct because background processes are the primary contributors to high resource usage. The technician should review startup programs using Task Manager (under the Startup tab) or the System Configuration utility (msconfig) to identify programs that launch automatically. Disabling unnecessary startup programs reduces the load on the CPU and RAM during boot, improving system responsiveness. Monitoring background processes in Task Manager also helps identify resource-intensive applications that may run periodically, such as automatic update services, cloud synchronization tools, or resource-heavy third-party applications.

Another important step is checking scheduled tasks that may trigger applications or scripts during certain intervals, consuming CPU and memory. Optimizing the system may involve removing redundant programs, reinstalling resource-intensive applications with lightweight alternatives, or configuring applications to delay startup until needed.

Option B) Hard drive failure can cause system slowness, crashes, or errors. However, Task Manager specifically showing high CPU and memory usage points to software-driven resource consumption rather than hardware failure. Symptoms of hard drive issues typically include unusual noises, repeated read/write errors, corrupted files, and Windows errors indicating bad sectors, not resource utilization spikes.

Option C) Incorrect monitor resolution affects display clarity and may increase GPU workload if resolution is extremely high, but it does not lead to persistent high CPU and memory usage from multiple applications. System performance degradation in this context is unrelated to screen resolution.

Option D) Disabled firewall affects network security but does not cause high CPU or memory usage. While some applications may attempt unauthorized network activity, the firewall itself does not impact background resource consumption.

In addition to optimizing startup programs, the technician can recommend regular system maintenance, including defragmenting traditional hard drives, cleaning temporary files, monitoring resource usage, and updating drivers to ensure software runs efficiently. Educating users about limiting unnecessary software installation and background services prevents future performance degradation. This approach maintains a balance between usability and system responsiveness.

Q78) A user reports that their Windows 10 system randomly shuts down even when the battery shows full charge. The laptop is also unusually hot to the touch. Which of the following is the MOST likely cause?

A) Overheating due to clogged vents or fan failure
B) Low hard drive free space
C) Incorrect screen resolution
D) Outdated display driver

Answer: A) Overheating due to clogged vents or fan failure

Explanation:

Random shutdowns accompanied by excessive heat indicate thermal issues. Laptops generate heat from the CPU, GPU, and other components. If cooling mechanisms—such as fans, vents, or heat sinks—are blocked or malfunctioning, the internal temperature rises above safe thresholds. Modern laptops have built-in thermal protection mechanisms that automatically shut down the system to prevent permanent hardware damage. Common causes include dust accumulation in vents, malfunctioning fans, degraded thermal paste, or improper laptop placement restricting airflow.

Option A) is correct because overheating is the most likely cause of sudden shutdowns in this scenario. The technician should physically inspect the laptop’s vents and fans, clean dust and debris with compressed air, and verify that the fan is spinning correctly. Checking internal temperatures using software monitoring tools can confirm thermal issues. If necessary, replacing thermal paste between the CPU/GPU and heat sink improves heat dissipation. Users should also be educated on proper laptop placement, avoiding soft surfaces that block airflow and maintaining an ambient temperature conducive to safe operation.

Option B) Low hard drive free space can cause slow performance and prevent temporary file creation but does not trigger random shutdowns due to heat. Storage limitations impact software performance, not thermal behavior.

Option C) Incorrect screen resolution affects display clarity but does not contribute to overheating or automatic shutdowns. While extremely high resolutions may slightly increase GPU load, they do not explain frequent thermal shutdowns.

Option D) Outdated display drivers may cause visual issues, crashes, or application errors, but they do not directly cause overheating unless the GPU is being misused by a specific software malfunction. In normal usage, thermal shutdowns are hardware-related.

Addressing overheating involves both preventive and corrective measures. Cleaning vents and fans, replacing worn-out components, ensuring proper system placement, and monitoring temperatures can prevent hardware failure. Overheating can damage CPUs, GPUs, motherboards, and batteries, making timely intervention critical. Proper maintenance extends device lifespan, maintains performance, and protects user data from corruption caused by abrupt shutdowns.

Q79) A Windows 10 user reports that their system is frequently displaying pop-up ads, even when no browser is open. Which of the following is the MOST likely cause?

A) Malware or adware infection
B) Low hard drive free space
C) Incorrect system date and time
D) Disabled screen saver

Answer: A) Malware or adware infection

Explanation:

Pop-up ads appearing outside of web browsers are a strong indicator of malware or adware infection. Adware is a type of malicious software designed to display unsolicited advertisements, redirect users to commercial or malicious websites, and sometimes track user activity. These programs run in the background, often hidden from the user, and generate pop-ups even when browsers are closed. The infection may occur through phishing emails, malicious downloads, or software bundling.

Option A) is correct because malware or adware is the primary cause of intrusive pop-ups. The technician should run a full system scan using Windows Defender or a reputable anti-malware tool to detect and remove malicious software. Additional steps include checking installed programs for suspicious applications, removing unknown browser extensions, clearing temporary files, and applying system updates to patch security vulnerabilities. Educating the user on safe browsing practices and avoiding untrusted downloads helps prevent reinfection.

Option B) Low hard drive free space affects system performance and the ability to save files but does not generate pop-up ads. Storage issues manifest as slow file operations or system errors, not unsolicited advertisements.

Option C) Incorrect system date and time may trigger certificate warnings or prevent secure website connections but does not generate advertisements. Time settings affect system validation and encryption, not malware behavior.

Option D) Disabled screen saver does not affect adware or malware activity. Screen savers simply control idle display behavior and cannot prevent or trigger pop-up ads.

After cleaning the system, the technician may also configure browser settings, enable pop-up blockers, and monitor the system for residual malware activity. A combination of malware removal, system updates, and user education ensures long-term protection and restores normal system operation.

Q80) A user reports that their Windows 10 laptop cannot connect to a VPN, although other devices on the same network can. The user also confirms that the VPN credentials are correct. Which of the following should the technician check FIRST?

A) Local firewall or antivirus software blocking VPN traffic
B) ISP service status
C) Physical Ethernet cables
D) Screen resolution settings

Answer: A) Local firewall or antivirus software blocking VPN traffic

Explanation:

When a single Windows 10 laptop cannot connect to a VPN while other devices succeed, the problem is likely local to the device. Firewalls and antivirus software often monitor and filter network traffic to protect the system from malicious activity. VPN connections use specific ports and protocols (such as PPTP, L2TP, or OpenVPN) that may be blocked if firewall rules or antivirus settings are overly restrictive. This scenario is common in enterprise or personal devices with security software configured to limit unknown connections.

Option A) is correct because verifying and adjusting firewall or antivirus settings addresses the most probable cause. The technician should temporarily disable firewall and antivirus software for testing, confirm VPN client logs for connection errors, and create exceptions for VPN traffic if necessary. Proper configuration ensures security without blocking legitimate connections. Checking VPN protocol compatibility with the software and network environment is also important.

Option B) ISP service status affects all devices; if other devices connect successfully, the ISP is not the cause. Troubleshooting ISP connectivity is unnecessary in this case.

Option C) Physical Ethernet cables do not affect VPN connections if the laptop is connecting via Wi-Fi, and other devices are functioning normally. Cable issues are irrelevant unless using wired connections exclusively.

Option D) Screen resolution does not impact network communication, VPN connectivity, or encryption protocols.

After confirming that local security software is not blocking VPN connections, the technician may also verify the VPN client version, update network drivers, and check system logs to ensure proper routing and authentication. Maintaining proper firewall and antivirus configurations ensures both security and reliable VPN access.