CompTIA A+ 220-1102 Practice Question
A user's computer fails to boot and displays an error message indicating a missing operating system. After troubleshooting, you suspect it might be a boot sector virus. Which action should you take to confirm and address this issue?
Reinstall the operating system from a USB drive.
Format the hard drive and reinstall the operating system.
Use an antivirus rescue disk to scan and repair the master boot record (MBR).
Run a full antivirus scan from within the Windows environment.