The G DATA USB Keyboard Guard

Depending on the options you selected during installation, the G DATA USB Keyboard Guard will be installed along with your G DATA software. The G DATA USB Keyboard Guard protects against the most common type of USB attack: USB devices that masquerade as keyboards. This behavior is known as Bad USB. If the system detects a new keyboard, access is initially blocked and a pop-up is displayed. You can then verify whether it is actually a keyboard and either permanently allow or block access.

Using the G DATA USB Keyboard Guard

When a new keyboard, or a device that acts as a keyboard, is connected, a Windows notification appears when you are using G DATA USB Keyboard Guard. This notification asks you whether you trust the new device.

Here, you have the option to block the device or allow the keyboard. If you allow the device, you must then enter a four-digit code as an additional security measure.

Once you have entered the code, you can use the device as usual. The G DATA USB Keyboard Guard remembers the devices that have been authorized, so you only need to go through the authorization process once.

If you accidentally blocked a device, simply reconnect it. It will be recognized again, and you can authorize it. When needed, restart your computer if the device is not recognized immediately.

Block devices that were previously allowed

If you have enabled a keyboard but later decide you would rather disable it, you will need to make changes to the Windows Registry. Please only edit the Windows Registry if you are familiar with it! Incorrect changes to the Registry can cause Windows to become unstable.

Alternatively, you can uninstall the G DATA USB Keyboard Guard and then reinstall it. This is more time-consuming, but you do not need to be familiar with the Windows Registry.

1	Open the Windows Registry using the Registry Editor.
2	Navigate to *HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\GDKeyboard Guard* in the Registry.
3	Delete all entries that begin with “HID\VID,” as shown in the screenshot above.
4	Restart the computer. After restarting, the device will be detected again and will be blocked by default.