Un-Signed system files can cause system instability if they’re not correctly written, and may even be a sign of Virus infection. To check for and display any un-signed drives use the following procedure.
- Click the Start button and select the Run option, type in ‘sigverif‘ and hit Enter.
- Click Start in the wizard dialog and your system will be scanned for un-signed files.
- Google any files displayed and take the appropriate action.