Windows 7 will check for a digital signature when installing new device drivers in order to verify the publisher of the software. Officially, Microsoft requires all drivers in Windows 7 64-bit to be digitally signed with the idea that this will maintain secure and stable operations throughout the operating system. Admirable goal alright but sometimes Microsoft’s hand holding can get in the way. There could be a situation where you need that unsigned driver installed yet the x64 version of Windows makes quite a stink.
Microsoft has provided a means to developers to by-pass the signing requirement, if only to facilitate internal testing of the publishers driver. Using this method, us users are able to disable the digital signature check and freely install any driver of our choosing. Standard disclaimers apply and this disabling of a security layer in Windows should only be done by power users a like.


I’ve tried these options on Evaluation version Win7 – 64bit build 7100 and it does not work. When I press F8 and choose to disable from there it does work. I’ve tried various changes to the instructions above and believe this should be an option by using bcdedit, but cannot accomplish – please advise if you have any other suggestions.
Lame question I know, but does the DOS box come back with the “operation completed successfully”?
This is possible in group policy as well, but most home users are running Home Premium and do not have that option available
Did this procedure, and it appears to have worked well. How do I get my laptop out of test mode now?
Running Windows 7 HOme Premium.
You mean the testsigning parameter correct? You need to keep that option on in order to continue to load the unsigned drivers each boot. It should not affect anything else you are doing on your laptop. You can repeat the command in the command prompt, replacing on with off to return to the default functionality – but then that driver will not load again.
This works great, in windows 7 however the switch is activated with a / not a – so use this:
◦bcdedit.exe /set loadoptions DDISABLE_INTEGRITY_CHECKS
◦bcdedit.exe /set TESTSIGNING ON
If that still dosent work use:
◦bcdedit.exe /set loadoptions DDISABLE_INTEGRITY_CHECKS
◦bcdedit.exe /set TESTSIGNING OFF
Seems either / or – work with the set command; retested with Win 7 Home Premium.
works a treat thanks
Great to hear – thanks for the feedback
Executed both commands successfully, rebooted PC and tried installing java again.
Does not work.
@Dragoniel
What are you trying to install exactly? The Java Runtime has no correlation to device drivers unless i’m misunderstanding the problem. What message do you get upon attempting to install Java?