HidGuardian v1 driver installation
Daltz333 last edited by nefarius
This article covers the installation of the (deprecated) HidGuardian major version 1 (a.k.a. Gen1) driver. Its development has been discontinued yet there's software out there depending on it. Please make sure you need version 1 first before going through this article!
HG) v1 is very limited in functionality. It was more of a proof of concept (PoC) than a full blown product. Nonetheless it can still assist you in blocking input devices which is its core intention.
If you're a developer starting with a fresh project, please refrain from using
HGv1 as it won't receive any new features or fixes, thank you!
Some facts about
- Configured via registry keys and values
- Can only whitelist processes based on PID (numeric Process ID)
- Has no real "official" API so might break between minor releases
This list is in no way complete as we rely on community/developer feedback. Some known products include:
Grab the driver archive matching your systems architecture from here and extract them (e.g. to
Some morons/trolls might have told you that you have to put drivers into
system32folder. Don't do that, Windows can take care of its drivers by itself, fooling around in your system folders can brick your machine. You have been warned.
Now get the Device Console (devcon) utility and also extract it somewhere (e.g. to
So the folder structure you end up with should look like so:
Alright, here we go take one last deep breath and continue reading carefully and nothing will go wrong.
Fire up PowerShell as Administrator and insert the following commands one after another:
C:\hg\devcon\x64\devcon.exe install C:\hg\x64\HidGuardian.inf Root\HidGuardian
Which is expected to return:
Device node created. Install is complete when drivers are installed... Updating drivers for Root\HidGuardian from C:\hg\x64\HidGuardian.inf. Drivers installed successfully.
This command created a virtual "dummy device" so the driver can get loaded.
C:\hg\devcon\x64\devcon.exe classfilter HIDClass upper -HidGuardian
Which is expected to return:
Class filters changed. Restart the devices or reboot the system to make the change effective. HidGuardian
This command internally adjusted some registry values causing the driver to get loaded onto every input device automatically.
That's it! You're ready to rock
You'll either need to unplug and plug in your input devices or reboot the machine for the driver to work!
HGrequires a special procedure described here or else you could end up with no keyboard/mouse!
For removal you don't need the original driver files, you will need
devconthough so make sure you got it ready as described earlier.
Then from an elevated PowerShell execute:
C:\hg\devcon\x64\devcon.exe classfilter HIDClass upper !HidGuardian C:\hg\devcon\x64\devcon.exe remove Root\HidGuardian
It might have accidentally happened that your system has more than one virtual device. If that's the case, simply execute the two commands multiple times until they're all gone.
Now reboot and you're good to go
Some registry keys and values can be safely removed manually after the driver is gone.
Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\HidGuardian\Parametersthe following values can be removed (if they exist):
Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\HidGuardian\Parameters\Whitelistand all sub-keys can be removed as well.