I have been fighting this for the past four weeks. I have tried any and all suggestions from numerous sources, with no luck. This started with a routine factory reset of the computer. All appeared normal and as WIN 10 started, I had no keyboard or mouse, so I could not get by the first page of WIN 10. I restarted multiple times with same results. I was able to get into BIOS, but not SAFE mode. I changed the BIOS to USB first and restarted. I used a new WIN 10 media USB. Computer started but WIN 10 would fail a few pages past the Microsoft log in. I restarted and on the second page of WIN 10 there is an item in the lower left of the page that says you can repair your computer. Went there and went through all of the different locations, but none would work or complete. However, I could get a Command Prompt. And I have tried several things there, but it still will not boot. It is now in a locked mode with the WIN 10 Automatic Repair which also never fully starts or completes. No matter how many times you restart it goes back to Automatic Repair.