'Kill', really. There are some serious idiots who get to write on the internet. It just confuses people who don't know much about computers. Thats all i'm gonna say on that issue.
Make sure your nvidia drivers are up to date before you upgrade. Then update them again once you have. Nvidia experience does it for you in one click. Most people having issues probably haven't updated any of them for a long time.
If anyone is interested, my GTX 980 runs just fine under windows 10.