Wow that sucks, its weird how windows 10 seems to work inconsistently from user to user. I migrated my personal computer and all the family's computers (wife and 3 kids) over to windows 10 in September of 2015. I have had a few issues (none major), mostly adjusting the settings as windows tries to automate everything and make decisions for you.
Most of the calls I get from home users who have upgraded has been mainly not understanding the interface (i Cant find my this or that when I hit start). Once I show them a few things and make some adjustments, it seems to go fine.
I have not switch my business clients over yet, but I'm going to start next week with some that we have tested their main LOB software works with it.
I have read many horror stories, some on this site, on windows 10 migration, but I have yet to experience any yet (thank god). It just baffles me because I keep waiting to run into some and so far no luck. Personally I like windows 10, it has a few quirks that I would like to strip out, but overall in my opinion Microsoft is taking a step in he right direction.