A technician receives the Chief Executive Officer's (CEO's) Windows 10 laptop, which has been infected with malware. The technician wants to make sure best practices are followed for troubleshooting and remediating the malware. Which of the following best practices should the technician perform FIRST in this scenario? (Choose three.)

A user who is running Windows XP calls a technician to upgrade the computer to a newer Windows OS. The user states the computer has only 1GB of RAM and 16GB of hard drive space with a 1,7GHz processor.
Which of the following OSs should the technician recommended to ensure the BEST performance on this computer?

After installing an application on a smartphone, a user starts receiving pop-up ads for recently visited physical stores. The user also receives prompts to install other applications. Which of the following permissions should be revoked to disable the unwanted notifications?

A technician is looking for ways to recover a system in the event of an infection. The antivirus is running, and the customer is receiving weekly threat alerts. The customer's core work includes daily web browsing and insecure file downloads.
Which of the following should the technician do to recover the system with the LEAST amount of effort?

A home server rack is being installed in the computer room and is outfitted with a power distribution block.
Which of the following safety precautions is required?