On Windows Vista and Windows 7, with the default settings, we can’t install unsigned third party drivers. We need to enable test signing to install such drivers. We can enable this from command prompt using the below command.
bcdedit /set testsigning on
Note that you can run above command only from elevated administrator command prompt. Otherwise you will get error as shown below.
c:\>bcdedit /set testsigning on The boot configuration data store could not be opened. Access is denied.
After running the above command, you can verify that test signing is enabled by looking at the boot loader settings which can be retrieved by running ‘bcdedit‘ command.
C:\>bcdedit Windows Boot Manager -------------------- identifier {bootmgr} device partition=\Device\HarddiskVolume2 description Windows Boot Manager locale en-US inherit {globalsettings} default {current} resumeobject {8d354cb4-d349-11e0-be61-5cff35092b52} displayorder {current} toolsdisplayorder {memdiag} timeout 30 Windows Boot Loader ------------------- identifier {current} device partition=C: path \Windows\system32\winload.exe description Windows 7 locale en-US inherit {bootloadersettings} recoverysequence {8d354cb6-d349-11e0-be61-5cff35092b52} recoveryenabled Yes testsigning Yes osdevice partition=C: systemroot \Windows resumeobject {8d354cb4-d349-11e0-be61-5cff35092b52} nx OptIn C:\>
To disable test signing you can run the below command:
bcdedit /set testsigning off
SOURCE | LINK (Windows-commandline.com) | LANGUAGE | ENGLISH |