Driver not digitally signed -> (Code52)

This forum covers issues concerning multiple software products.

Driver not digitally signed -> (Code52)

Postby G.Lang » Thu 9. Jun 2016, 10:28

Since driver version 4.1 our drivers use the new microsoft driver model with a new signature and therefore it´s necessary to update the certificate store otherwise you get the "Code 52" warning at Win Vista/7 and 8.x

driver4_1_x.JPG (60.22 KiB) Viewed 154879 times

Solution 1:
Update your system


Solution 2:
Download driver version 4.0.18 from the following link -> and remove driver version 4.1.x.

Please follow the steps below

Uninstall the current driver version via right mouse click inside the device manager -> click "Remove" or "Uninstall"
remove_driver_1.JPG (68.4 KiB) Viewed 154879 times

and select "Remove the driver software for this device" (or similar)
remove_driver_2.JPG (25.45 KiB) Viewed 154879 times

and press "OK" and wait till the uninstall routine is finished, then reboot your PC and install driver version 4.0.18

For further infos or questions contact us via email ->
Posts: 139
Joined: Wed 22. Sep 2010, 13:58
Location: Paradise City

Driver not digitally signed -> (Code52) - ALSO on W10

Postby U.Wilhelm » Mon 5. Sep 2016, 16:05

Since the the last Windows 10 Update (Anniversary Update: Version 1607) on new PC´s with a new installed W10 1607,with UEFI BIOS and used Secure Boot, this error come up when you try to install our Device Drivers:

Windows cannot verify the digital signature for this drivers required for this device. A recent hardware or software change might have installed a file that is signed incorrectly or damaged, or that might be malicious software from unknown source. (Code 52)

Signatur_01.JPG (54.36 KiB) Viewed 149431 times

If you run in this problem, please use the latest drivers which are signed by Microsoft:
Signatur_02.JPG (62.95 KiB) Viewed 149431 times

in our new PeakOemDrv.exe Driver Setup Package we have implemented allneeded drivers for all the differnt OS.
Thank´s to Microsoft for the Workload...
PEAK-System Technik
Technical Support Team
User avatar
Sales & Support
Sales & Support
Posts: 1037
Joined: Fri 10. Sep 2010, 18:34
Location: Darmstadt

Return to Software

This website uses cookies for analytics, for logins to the online shop and the forum, and for the handling of an order. By browsing this website you agree to the use of cookies. Detailed information on their use can be found in our privacy policy.

OKPrivacy Policy