Last time you turned on your computer, Windows started correctly. Now Windows starts but fails before the login prompt. What is the first step you should try to troubleshoot this problem?
A. Restore a system image to the drive.
B. Restart the computer, press F8, and select Last Known Good Configuration.
C. Restart the computer, press F8, and select Safe Mode with Command Prompt.
D. Restart the computer, press F8, and select Start Windows Normally.
This is incorrect, should be B. Last Known Good
Safe Mode with Command Prompt is the first thing you do when Windows has problems. Safe Mode can fix most problems with Windows and should be your first choice for repairing the OS. https://en.wikipedia.org/wiki/Safe_mode