This is a Macbook Pro with Windows 10 installed via Bootcamp, and OS X El Capitan. MacOS currently boots normally and works, so I think the hardware is okay. Windows 10 was working pretty well until Friday night. Now all I get is the blue Windows logo (it blinks once), then a black screen.
Since I am able to boot to MacOS, I backed up important files from the Windows NTFS partition to an external drive, and then looked in the C:\WINDOWS\ folders - sure enough, it seems that Windows Update performed (or tried to perform) some updates in the middle of the night. I had put the computer into Windows 10 hibernation mode the night before, then woke up to a computer that won't boot.
I'd like to boot into Windows 10 Safe Mode, as I think this may allow me to identify and disable the cause of the problem (perhaps restore to a Restore Point from before the Windows Update?). But I can't figure out how to get into Safe Mode ...
How can I boot into Safe Mode on a Bootcamp machine?
With read access to the Windows drive (from MacOS), what are some things I can check, to try to determine the nature (and cause) of the boot issue?
Has anyone experienced a similar situation?
Thank you for your time.