Investigating other possible causes of a problem

XOX

If a problem still exists after you perform a diagnostic startup, investigate the possible causes listed below. XOX

A file is missing, corrupted, or has been replaced. Refer to the System File Checker tool to investigate this option.
One or more of your system files or your registry may be corrupted. If you perform regular backups, you may be able to restore these files from a recent version. For more information, see Windows Backup.
Your computer may be infected with a virus. Search the Web, using virus as a keyword, for information about virus-scanning software.
An upgrade from a previous version of Windows was unsuccessful.