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#11
I don't think a clean install would help but if you have a spare hard drive you can try it on then it's worth trying.
I run with a EVGA GeForce GTX 750 and so far it's worked well with all versions of Windows 10. The 750 doesn't require the extra 6pin power connector. Specs say the 760 require two 6 pin connectors and a minimum 500W supply.