I have had 2 problems with Win10.
One is a problem that doesn't resolve itself even though the screen message says it will and the other is a printer issue.
First the BSOD issue. Below is a picture of what several people have gotten. I got this after about 2 months of running Win10.
The solution is not the one they suggest in the text. The solution, I found by searching the web, was to hit F8 on a restart continuously. This error means that there is a problem with a couple of the core programs....Cantana or something like that, don't have the message now, there are 2 core programs having an issue. The F8 does a 'stealth' safe mode boot to fix the issue. Again it's stealth so you don't know it's happening, but it does.
Initially you will have no start menu or programs within start. You'll see the button, it just won't work. Many program won't initialize, it's a real pain and panic can set in.
It took me a couple of tries to get the F8 to work but it does work and I've not had a problem with this since.
The second issue I had was with a Xerox printer. It just stopped printing one day. After going nuts with trying to figure this out, reinstalling drivers, etc., all the usual stuff, I checked the driver and the IP on the printer. They were different. Once I corrected that, voila, printing was restored. This happened twice so far with the same fix needed. Somehow Win10 was changing the IP on the printer, kind of weird because it should not be able to do that without human intervention..... however, that's what happened.
Hope this helps someone out there.