How to Turn off Digital Driver Signing Check in Vista

Log on as the Administrator and do the following:-

Start>Run>cmd.exe>Ok

Now in the Command Prompt window type in the following command:-

Bcdedit.exe /set nointegritychecks ON

Reboot and install the unsigned driver without any hiccup.

If you want to turn on driver signing check then use the following command.

Bcdedit.exe /set nointegritychecks Off

Restart the system.