ra33o said:Hi. I have a GTX 670MX GFX housed in a Medion X7820 laptop (Win8).
I got the same problem. And I also got a bit closer after I had changed the inf-file.
So I read some of the logs and could conclude that is was because Win8 had enforced driver signing enabled. I disabled the enforced driver signing and could install the modified driver 310.90 without any problems.
How to temp disable enforced driver signing:
Start up CMD and write:
shutdown -o -r -t 0
It will now give you a updated "F8" menu.
Click ‘Advanced Options’
Click ‘Windows Startup Settings’
When your computer restarts, select ‘Disable driver signature enforcement‘ from the list by hitting F7. You can now install your modified driver after Win8 has booted up.
Hope this can be of any help!
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