How to Use Group Policy to Disable Unsigned Drivers

1. Click on 'Start' and then 'Run'.
2. Type 'gpedit.msc' into the run box and click 'OK.' If you don't have a run box, type it into the search box and press 'Enter.'
3. Click on the 'Windows Settings' folder.
4. Double-click on the 'Security Settings' icon, which is found in the middle panel.
5. Double-click on the 'Account Policies' folder.
6. Double-click on the 'Security Options' folder.
7. Double-click on the 'Devices: Unsigned Driver Installation Behavior' text.
8. Select the 'Block' option from the drop-down box, and click 'OK.'