I had an issue with mine... pretty sure it was there lurking in the weeds prior to the upgrade. I had Windows 8 that was upgraded to 8.1. It never would let me use the "Restart" off the start menu. Any time I used that, it would shut down, show the bios, then show the starting window with the spinning dots and get stuck there. Then I'd have to do a hard power off (power button for 10 seconds), wait a few seconds, then power it back up and it would start fine. Then I found that if I went to the Metro screen and used Restart there, it would work fine.
I no longer have the metro screen with W10.
So, I tried a few things I found on the MANY pages of people having a similar issue with startup/shutdown and I apparently changed my boot via msconfig to something other than "Normal" at some point in the past and forgot. One of the suggests was to do a safe mode boot, which I did. Then I chose "Normal" and tried to reboot. Then I got a BSOD saying some file was corrupted. Unfortunatley, I didn't mirror my drive after upgrading to W10, so all I could do (after 3 hours of exhaustive attempts at getting around the issue), I had to re-mirror from my W8.1 clone. I first rebooted to my W8.1 clone drive, Then to get the email and various things I did in the past two weeks that were non-windows, I copied the entire drive's contents to an additional internal storage drive (which for some reason took 3 hours). Then re-mirrored back to my SSD. Going from HDD to SSD takes about 15 minutes for 80G.
Re-mirrored, rebooted, back to W8.1. Upgraded to W10 again, did the 15-20 changes to get big brother off my back, went to best buy, bought another 240G cheap SSD to clone W10 too that was "working" (also bought 2 additional drives to clone my media pc and wifes laptop so I could retain the previous OS and W10 with solid backups). Once I had the W10 clone made, I changed just that one setting and it bricked it again. Swapped the drive/recloned, 15 minutes later, back to W10 that won't restart and gave up.
From what I can tell, people found that the "fast boot" was causing it on their machines, but I don't have that enabled. I also don't have hibernate enabled. It's a fast desktop with an SSD that boots from cold in about 20-25 seconds. WTF would I want to have huge .sys files floating around on my SSD that I don't need. So, I'll live with it as it is and just never use restart. Which means I can't remotely update anything and have to be here.
Stupid windows.
