Windows 10: Upgrading Windows 7 to 10 - Device Isn't Compatible in Windows 10

When upgrading using a Windows 10 disk I eventually get the above incompatibility message and it lists Nvidia GeForce 6150SE nForce 430. In smaller print it tells me that I'll have problems with my display in Windows 10.
If I go into Device Mgr, right-click display driver it shows that same Nvidia driver. Selecting update driver tells me that it's installing a driver, but then I get a msg

Windows found driver software for your device but encountered an error while attempting to install it.

Access is denied.
Anyone know what this means and how to correct it?

:)

 

Still possible to upgrade to Windows 10

Look at the notice on Microsoft's Windows 10 free upgrade website: "3GB+ download required; internet access fees may apply. Windows 10 Upgrade Offer is valid for qualified Windows 7 and Windows 8.1 devices, including devices you already own. Some hardware/software requirements apply and feature availability may vary by region and device. Windows 7 SP1 and Windows 8.1 Update required. Some editions are excluded: Windows 7 Enterprise, Windows 8/8.1 Enterprise, and Windows RT/RT 8.1. To check for compatibility and other important installation information, visit your device manufacturer’s website and the Windows 10 Specifications page. Windows 10 is automatically updated. Additional requirements may apply over time for updates."

 

Is it time for Windows 10 already?

Again, for those that want the update reservation and you meet the requirements ---> Upgrade to Windows 10 for Free

And, some info from the FAQ page:

Also, some interesting info from the Specifications page:

 

Windows 10 upgrade problem, no input accepted

I really hate having to come here and ask for help, but I really am stumped. It hurts my geek pride. I have a PC with fairly modern hardware in it. It has a p8p67 pro in it. I have tried upgrading windows 10 on it twice now. Both times I have had the same result.

After windows finishes upgrading it goes to the log in/set up screen. I can't do anything. No keyboard or mouse input is accepted.

I will list some, or hopefully all, of the troubleshooting steps I have tried:

• Move keyboard and mouse to different USB ports.
• Try different keyboard or mouse.
• Restart computer, repeatedly.
• Google for related issues.
• Update Bios, because why not.
• Create boot media and revert to windows 7.

The windows 10 system restore boot media works fine with keyboard and mouse. All USB ports work in windows 7. I don't know what is wrong. I suspect that windows 10 is lacking a driver of some sort, but since the computer accepts no input I have no way of checking for which driver let alone installing it.

Please help me figure this out. If I have to revert back to windows 7 again, I am not going to get it upgraded to windows 10. Thank you in advanced.