How to install unsigned drivers on Windows 7

Sometimes I download drivers from the manufacturer’s website and, stupidly enough, the drivers aren’t signed, so Windows won’t let me install them.

To install the unsigned drivers, turn off UAC and open an elevated cmd prompt.

Enter the following two lines of code:

bcdedit /set testsigning on
bcdedit /set loadoptions DDISABLE_INTEGRITY_CHECKS

Now you can install the unsigned driver and reboot the computer, then turn UAC back on. You will notice from now on that at the bottom right hand corner of the screen, it says “Test mode” and lists the build number of Windows. It’s just something you have to live with if you want the driver to continue to work. Executing this code:

bcdedit /set testsigning off

will change things back to normal but will cause the unsigned driver to stop working again. There are other, more roundabout, methods for doing this, some of which may include a way to get rid of the “Test mode” text.