Explanation
When a homeowner moves and sets up a new router for the new ISP it is important to take appropriate security measures to protect their network from potential security threats. The FIRST step that the homeowner should take after installation of all relevant cabling and hardware is to change the default passwords on new network devices.
Most modern routers come with default usernames and passwords that are widely known to potential attackers.
If these defaults are not changed, it could make it easier for external attackers to gain unauthorized access to the network. Changing the passwords on new network devices is a simple but effective way to improve the security posture of the network.

Explanation
Rebooting the system in safe mode will limit the number of programs and processes running, allowing the antivirus system to more effectively identify and remove the malware. Rescanning the system will allow the antivirus system to identify and remove the malware while preserving the user's files.

Explanation
Navigate to the Windows 10 Settings menu, select the Accounts submenu, select Sign in options, select Windows Hello Fingerprint, and have the user place a fingerprint on the fingerprint reader repeatedly until Windows indicates setup is complete. Windows Hello Fingerprint can be set up by navigating to the Windows
10 Settings menu, selecting the Accounts submenu, selecting Sign in options, and then selecting Windows Hello Fingerprint. The user will then be asked to place a fingerprint on the fingerprint reader repeatedly until Windows indicates that setup is complete. Windows Hello Fingerprint allows the user to log into the laptop using just their fingerprint, providing an additional layer of security.

Explanation
UPS > Surge protector = Computer, wifi router, cable modem
Surge protector = wallOutlet , printer and scanner

Explanation
User Accounts is a Control Panel utility that allows the technician to manage user accounts and groups on a local computer. The technician can use this utility to add a user to the local administrators group, which grants the user local administrative access to the workstation. The other options are not relevant for this task.
References: :
https://docs.microsoft.com/en-us/windows-server/identity/ad-fs/operations/manage-user-accounts-and-groups