Explanation
Since the systems administrator has validated that the workstation functions normally and other users operate on the same workstation without any issues, the next step should be to rebuild the user's profile. This will ensure that any corrupted files or settings are removed and the user's profile is restored to its default state.

Explanation
WPA3 (Wi-Fi Protected Access version 3) is the latest version of Wi-Fi security and offers the highest level of protection available. It is designed to protect against brute force password attempts and protect against eavesdropping and man-in-the-middle attacks. WPA3 also supports the use of stronger encryption algorithms, such as the Advanced Encryption Standard (AES), which provides additional protection for wireless networks.
WPA3 should be implemented in order to ensure the best possible security for the new wireless router.

Explanation
If a rootkit has caused a deep infection, then the only way to remove the rootkit is to reinstall the operating system. This is because rootkits are designed to be difficult to detect and remove, and they can hide in the operating system's kernel, making it difficult to remove them without reinstalling the operating system
https://www.minitool.com/backup-tips/how-to-get-rid-of-rootkit-windows-10.html

Explanation
The technician should perform a rollback of the Windows update that caused the issue with the locally attached devices. A rollback is a process of uninstalling an update and restoring the previous version of the system. This can help to fix any compatibility or performance issues caused by the update1. To rollback an update, the technician can use the Settings app, the Control Panel, or the System Restore feature. The technician should also check for any device driver updates that might be needed after rolling back the update.
Disabling the Windows Update service is not a good practice, as it can prevent the system from receiving important security and feature updates. Checking for updates might not fix the issue, as the update that caused the issue might still be installed. Restoring hidden updates is not relevant, as it only applies to updates that have been hidden by the user to prevent them from being installed2.
References: 1: https://www.windowscentral.com/how-uninstall-and-reinstall-updates-windows-10 2:
https://support.microsoft.com/en-us/windows/show-or-hide-updates-in-windows-10-9c9f0a4f-9a6e-4c8e-8b44-af

Explanation
Power Options is a Control Panel utility that allows users to configure the power settings of their computer, such as when to turn off the display, when to put the computer to sleep, and how to manage the battery life.
Power Options also allows users to configure the USB selective suspend setting, which is a feature that automatically suspends the power supply to USB devices that are not in use, in order to save energy. A user can disable this setting if they want to ensure that USB devices are not suspended by the operating system.
System, Devices and Printers, and Ease of Access are not Control Panel utilities that can be used to configure the USB selective suspend setting.