I had a really bad time with this upgrade yesterday. Infact every time I reinstall any windows os... Be it 7, 8.1 or 10.... I get problems.
The most annoying thing is it is a new error each time and never consistsant.
Anyway, upgraded Yesterday. That went fine.
Took a while to activate but understandable.
Decided to do a clean install. It did its thing and then rebooted.
It got to the windows logo and then blue screen came up saying boot drive inacessible or something like that.
So I start downloading 10 on another computer but it downloads 1% every 10 mins.
I find an ISO someone kindly uploaded here and that downloads in 10 mins.
Reinstall again and automatically updates my gpu.
After a flicker on the screen due to installing my AMD card, I now see a black screen. Nothing changes, cant see anything.
Faf around for another 25 mins figuring out what the issue is.
Some reason the install of the gpu it found doesn't like dvi but was happy with hdmi.
At least then I could install proper drivers and get them both working.
Irritating still and it's left a sour taste in my mouth... Probably just been unlucky but still