[Help] I installed windows 10 and now my primary monitor randomly becomes unusable

As above, I have had no issues with windows 7, I updated to make sure I had a key, try it out for a bit, then revert. Considering http://imgur.com/8lP8dds this is what my primary monitor does for no apparent reason when it never did it at all on windows 7 is rather dissapointing. Is there a 'screw over the nice expensive monitor' setting i'm missing?