Download and install CCleaner, a free system optimization program.

Repair and fix your computer's registry with CCleaner.

Set CCleaner to close automatically after cleaning.

Select specificied cookies so that they're never deleted by CCleaner.

Set certain files or folders from ever being deleted in CCleaner.

Include certain files or folder so that their contents are deleted in CCleaner when cleaning.

When cleaning, securely delete your files so they cannot be restored.

Allow temp folders less than 48 hours old to be deleted.