Windows 10 Pro x64
A family member gave me her laptop a week ago to figure out why she can no longer connect to the internet via a wifi connection. I quickly determined that the WLAN Auto Config service was not running due to the NDIS Usermode I/O Protocol service not starting. The Windows event log provides the following error notification:
If I use the Advanced startup settings and disable driver signature enforcement, then the driver loads and the wifi works as expected. So, the real question is, how do I fix the unsigned driver? I have already tried all of the following:
- Attempted to copy the certificate for this file from another Win 10 system -- it was not entirely clear how to find the certificate that is for this file, but I did copy ones that looked likely. It is still possible that I did not get the right one... how do I find it?
- sfc /scannow -- indicates that there are errors, but it is unable to resolve
- dism /online /cleanup-image /restorehealth -- also completes with error
- bcdedit commands to disable driver integrity and turn on TestSigning -- driver still fails to load
- Various changes to Group Policy (gpedit.msc) -- driver still fails to load
I then got desperate and tried System Reset, which left me unable to boot at all. I have restored the image I made right before that.
So, how do I get the ndisuio.sys file to be properly digitally signed?
Thanks in advance for your assistance.