Installation of the client under Windows 7 is failing

Problem Description

If the current client is installed directly, an error may occur:

Windows 7 Fehler


Windows requires a digitally signed driver. A recently installed program tried to install an unsigned driver. This version of Windows requires all drivers to have a valid digital signature. The driver is unavailable and the program that uses this driver might not work correctly. Uninstall the program or device that uses this driver and check the publisher’s support website to get a digitally signed driver.

The issue in question appears due to a missing patch in Windows 7.


Please proceed as follows to be able to install the G DATA Security Client:

① Uninstall the software using AVCleaner. If necessary, you will be prompted to run AVCleaner again after a reboot.

② Download the Microsoft patch that matches your system architecture:

③ Restart your Computer.

④ Proceed to install the G DATA Security Client again.

If you have any questions, our business support is available to you free of charge at any time. Contact G DATA Business Support