New
#1
Boot Usually Fails with Black Screen
Windows 10 Pro, [Version 10.0.19043.1288], sfc and dism system checks OK. I rarely reboot my machine, a habit from years of making long runs lasting many weeks or even months. When a WU comes that requires a reboot (think Update Tuesday), it nearly always hangs on boot. I find that the same thing happens when I reboot for any reason. Process:
- Takes a long time to shut down,
- UEFI Bios loads, gives me a chance to change the boot priority and such, then boots the Windows bootloader,
- Takes a long time to get to the light blue screen, then
- Goes to black screen.
At this point, one of two things happens: the desktop background comes, on, gradually populated by the widgets that make the lock screen, OR, the black screen remains forever, with the monitor turned off. Recovery is to power down the motherboard and power back up. Sometimes it takes a few tries, but that usually does it.
Sometimes, powering off and on doesn't bring it back. Then, I boot to a recent Windows 10 Rescue Media thumb drive and ask it to repair the boot sequence. It declares failure, but it will boot to the lock screen if I select "Exit to Windows."
I decided to try running bootrec to fix things. I used the simple way to get to Windows RE, Start -> Settings -> Update and Security -> Recovery, then, under Advanced Startup, select Restart Now. I got a strange message, something like "Making changes, computer will turn off when complete" and that's what it did. I powered off and on and booted to rescue media and asked to repair boot sequence, the selected exit to Windows.
Later this morning, I booted to Windows RE through the Start menu and tried to run bootrec. I got:
- bootrec by itself brings up the brief help file, showing that bootrec is there.
- bootrec /fixmbr gives the error "file not found"
- bootrec /fixboot gives the error "file not found"
- bootrec /rebuildbcd gives the error "Windows systems found: 0"
I exited to Windows and it booted OK, as it does from Windows RE on thumb drive. I have not yet had time to boot to rescue media and try bootrec again. I'm making a new rescue media, and it's taking all day and into the evening.
Any suggestions on how to fix my boot? I'm going to try booting to rescue media on thumb drive and try running bootrec that way. Any suggestions on how I can fix my \\Rescue partition?