Which disk management tool scans the critical files of an operating system and replaces the corrupt files?
Scandisk
Chkdsk
Disk Cleanup
System File Checker
Optimize Drives
Question 68
A user finds that when launching a downloaded Windows update file, Windows Update fails. What are two possible causes for this? (Choose two.)
A previous update that is required for the current update is not installed.
The virus definitions are out of date.
The downloaded update file is corrupted.
The hard disk is failing.
The Windows Firewall is turned off.
