Windows cannot verify the digital signature
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Hello,
I made the unfortunate mistake of upgrading from an older version of openvpn to the latest 2.4.8, under Windows 7 (ultimate, service pack 1). The machine has no internet access, its only being used internally.
What happened is, openvpn installed ok but the TAP interface disappeared. The device manager shows a yellow triangle with an exclamation, next to the TAP-Windows Adapter V9, and the device status says:
Windows cannot verify the digital signature for the 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 an unknown source. (Code 52)
Anyone knows if its possible to recover from this situation?
Thank you.
Windows SP1 is very old and will not support SHA256 signature without a hotfix. Try applying KB2921916 if you can still find it somewhere.
Ah I see. It would have been nice to have a warning in the installer, to stop me from continuing with the installation.
As a temporary measure, I found the older TAP driver in filestorage and that worked fine with openvpn 2.4.8.
I'll go look for KB2921916, thank you for your help.