A Certkiller .com user reported that he is unable to access certain files that are on his hard drive.
What should you do to address the issue?

A.
The file permissions on the hard drive should be verified.

B.
The computer should be formatted and completely reloaded.

C.
The user account should be deleted and then re-created.

D.
The computer should be rebooted and the user should log back on.