How To: Disable Digital Driver Signing In Windows Vista x64(64-Bit)
One of the more annoying components in Vista x64 is the prompt for signed drivers.This is because with Windows Vista x64(Windows Vista 64-bt edition), Microsoft has introduced a new kernel security component for the 64-bit editions of the Windows Operating System. Windows mandatory Kernel Mode and Driver Signing implies that all modules or drivers designed to run at kernel level have to feature digital signatures. Microsoft’s initiative is designed to increase the security of 64-bit Windows Vista platforms by attesting that the kernel level software is provided by a legitimate publisher.Driver signing was designed by Microsoft to stop unauthorized programs and drivers from interfering with the windows kernel, your Windows Vista x64 computer could be seriously at risk if you install drivers from a non trust worthy source. If you experience system instability or random crashes after installing an unsigned driver in Windows vista 64-bit operating system, there’s a good chance this driver is that is causing it and it would be a wise move to remove it.For this do the following procedures:
- Open an elevated command prompt in Windows Vista by click on Start, go to Programs -> Accessories, right click on Command Prompt and choose Run as administrator.
- In the command prompt enter the following code and press Enter:
bcdedit /set loadoptions DDISABLE_INTEGRITY_CHECKS
- Alternatively, you can try the following to turn on test signing:
bcedit /set testsigning ON
- Now restart your machine and you will be able to install unsigned/modified drivers, be sure you trust the source of the unsigned drivers you are installing.
Warning: This may allow Windows Vista x64 to install a driver that will make your system unstable.
In order to disable Windows Vista 64-bit OS’s digital driver signing verification, you need to restart your computer and enter the Advanced Boot Options menu by pressing F8 during the boot process. From the menu, select Disable Driver Signature Enforcement and press ENTER. This option disables the kernel-signing enforcement only for the current boot session.
Warning: This option is for developers who need to test drivers and for installing software drivers from trusted sources.