Which of the following Windows features is MOST likely the cause?

A customer consults a technician about a series of computers that fail to finish an overnight
task on a regular basis. The problem seems to only occur early morning between Tuesday
and Wednesday, and affects computers running the same operating system. Which of the
following Windows features is MOST likely the cause?

A.
Power Save Mode

B.
Safe Mode

C.
Disk Cleanup

D.
Windows Update