Automatic repair that doesn't work

[Tasos Kyriakidis]

Hello,
I have a problem.A big one.Last night i installed some updates on windows 10, shut down the pc and next morning this happend when i booted the computer:automatic repair doesn't work and when i select safe boot it goes to the automatic repair it doesn't work.This goes forever.Chkdsked the boot partition and no bad sectors.Any tips?

 

[LukeFatwalker]

Hate to tell you this, but it's a critical issue with the Boot Manager. If the repairs couldn't repair the Boot Manager then the only other option would be to either re-image the machine or re-format the machine. Because inevitably this update will come up again, I do recommend you run a backup (either disk imager or a snapshot tool like Rollback Rx) and if it happens again just restore the machine.

 

[jdlech]

What exactly is the problem you've experienced?
On two occasions already, I've lost power, which shut my w10 machine down, and I got a BCD error 14C on startup - boot files missing or corrupted.
The startup repair on my USB failed to repair it both times. Yet, on both occasions, I managed to follow these instructions and repaired it both times.
https://support.microsoft.com/en-us/kb/927392
You need a W10 installation CD or USB.
I don't know how these forums feel about external links, but here's the best instructions I've found.
http://pcsupport.about.com/od/fixtheproblem/ht/rebuild-bcd-store-windows.htm