So yesterday i shut down my computer, and today when i started it up (about 2 hours ago) i can see the startup Motherboard message and all the BIOS stuff, but after that it is just a blank black screen, can't see the blue Windows logo, or that spinning circle indicating that it's loading. I don't even see my mouse cursor. Now i would try it in safe mode but for reasons unknown you can't get to Windows 10 safe mode without getting first to the desktop, which i obviously can't right now. I would try the repair installation tool, but after i boot from USB device with the install media, then i get the Windows logo and the loading circle, but after that it just ends up in a screen that says "Your PC ran into a problem we will restart it now" and with a small white text it reads error 0xC000021A. (It doesn't say the 0% complete thing but other than that its all the same) So any ideas guys? Was there some update that messed it all up? I didn't see any message saying installing updates or anything like that when i shut the PC down. Could it be that it installed something in the background or is my PC bust?