nVidia installer refuses to install drivers

[snadol]

I'm trying to install drivers for my new nVidia GeForce gtx 660 ti, but the installer keeps saying I have other installations running but I don't. I've restarted the computer to make sure nothing else is running, and same issue...

 

[gaborbarla]

See if you can run this to uninstall the drivers completely and then reboot.
https://www.guru3d.com/files-details/display-driver-uninstaller-download.html
You can also try to run these in safe mode and see if that helps.