If unauthorized or non-standard applications are appearing on systems and users are receiving licensing prompts, it's likely users are installing software themselves. Removing users from the local administrators group will prevent them from installing software without approval and reduce the likelihood of introducing unapproved or malicious programs.
A). Deploying a PKI helps with secure communications but doesn't address user software installation rights.
C). Blocking suspicious websites is helpful but doesn't prevent local installations.
D). Stricter UAC may add prompts but can still be bypassed by admin users.
Reference:
CompTIA A+ 220-1102 Objective 2.2: Compare and contrast access control methods and user privilege settings.
Study Guide Section: Principle of least privilege and managing local admin rights

The correct answer is B. Task Manager, because Task Manager allows technicians to view, manage, and terminate running processes, including those that are frozen or unresponsive. If an application process is already running but not responding, launching it again will fail until the existing process is stopped.
According to the Quentin Docter - CompTIA A+ Complete Study Guide, Task Manager is the primary Windows tool for troubleshooting application hangs, excessive resource usage, and nonresponsive programs.
Technicians can end the task and relaunch the application cleanly.
The Travis Everett & Andrew Hutz - All-in-One Exam Guide explains that Resource Monitor provides detailed performance metrics but is not optimized for quickly terminating frozen applications. Event Viewer logs errors but does not resolve active process issues.
The Mike Meyers / Mark Soper Lab Manual reinforces that Registry Editor should never be used for live application troubleshooting due to the risk of system instability.
Because the issue involves an unresponsive background process, Task Manager is the fastest and safest tool to resolve the problem, making B the correct answer.

A VPN creates a secure tunnel from the user's home network into the corporate network, providing the necessary routing and access controls for the laptop to reach internal file servers. Without a VPN, the device remains outside the corporate LAN and cannot directly reach protected resources.
A VPN creates a secure tunnel from the user's home network into the corporate network, providing the necessary routing and access controls for the laptop to reach internal file servers. Without a VPN, the device remains outside the corporate LAN and cannot directly reach protected resources.

Windows doesn ' t natively support many Linux file systems (like ext4).Reformatting to exFATmakes the drive readable/writable on both Linux and Windows.
FromAll-in-One Exam Guide:
"For cross-platform compatibility, exFAT is recommended as it supports large files and is recognized by Windows, macOS, and Linux (with exFAT drivers)."

The correct answer is D. Connect a wrist strap to a metal frame, because this action directly prevents electrostatic discharge (ESD), which is one of the most common causes of accidental hardware damage during device disassembly. Even when a device is powered off, static electricity stored in the technician's body can discharge into sensitive components such as RAM, CPUs, and system boards.
According to the Quentin Docter - CompTIA A+ Complete Study Guide, the most effective way to prevent ESD is to equalize electrical potential between the technician and the device. An ESD wrist strap, when connected to a grounded metal surface such as a computer chassis, safely dissipates static electricity before it can damage components.
The Travis Everett & Andrew Hutz - All-in-One Exam Guide explains that while antistatic mats and bags are useful, they are secondary controls. The wrist strap provides continuous grounding throughout the repair process, whereas mats and bags only protect components when they are placed on or inside them.
The Mike Meyers / Mark Soper Lab Manual reinforces that working on plastic surfaces does not guarantee grounding, and placing components in antistatic bags is something done after removal, not immediately after powering down.
Therefore, once the device is turned off, the next and most important step is to connect a wrist strap to a metal frame, making D the correct answer.