This setting allows you to decide what the system will do when an unsigned or untested driver is installed. To make the settings, you can follow the following steps: click the Start button on the taskbar, then click Run on the Start menu, enter regedit and click OK to open the Registry Editor. Expand the HKEY _ Current _ User Software Policy microsoft Windows NT driver signature, create a DWORD item named "BehaviorOnFailedVerify", and set the value of this item to "0". The settings you modified will take effect after you restart your computer.