Windows 10: OS won't boot, locked out of recovery mode

Hey there!I just installed a new motherboard.Once I had windows running, I went to msconfig and advanced boot, and changed my core usage from disabled to 16. I have an AMD Ryzen 7 2700x. After restarting, the computer bluescreened, and went in to recovery mode. HOWEVER, it will not accept my password for any of the recovery options!! All I can do is enter bios!! If I enter bios and try booting again, it goes into an endless loading loop until I reboot and enter recovery again. It won't boot to PIN Login.I have even tried updating my password on Microsoft.com, but windows recovery still will no

:)

 

Laptop went black and won;t reboot

Hi Andree,

Hardware and software conflict is one of the possible reasons why you're experiencing black screen. Sometimes, it is also because of hardware failure. To get this issue fixed, we suggest that you
boot into Safe Mode by following these steps:

• Turn off your computer 3 times while booting. Windows should automatically boot to the Recovery Environment after 3 unsuccessful attempts in a row.
  
• Once you are within the Recovery Environment, select Troubleshoot, and then
  Advanced options, then Startup Settings, and
  Restart. When it restarts, you should see a number of options. Press 5 or F5 for
  Safe Mode with Networking.

Once your computer is in Safe Mode, please follow the workaround provided on this
link. Simply select the similar case that you're experiencing to show the troubleshooting steps.

Let us know how it works.

 

How does Windows boot to advanced recovery option e.g. command prompt?

- that gives me a 454 'Unexpected error' This tells me that the BCD is partially corrupted.

The commands: shutdown.exe /r /o /f /t 00
or: %SystemRoot%\System32\Cmd.exe /c reagentc /boottore&shutdown /r /f /t 00
should boot into Recovery if everything is configured correctly.
FYI, If Windows is configured correctly:

1. If Reagentc is disabled, you still can get into Recovery but with limited options.
2. If Reagentc is enabled, you'll get all options.
3. If you boot Windows using Recovery USB stick, You'll get into Recovery with couple of options missing.

Here's my suggestion if you want to try:
OPTION 1: Will save the trouble of re-install Windows.

1. Download the image of my first 3 partitions (450MB Recovery, 100 MB EFI partition, and 16MB unformatted primary)
   EFI_Boot-00-00.7z - Google Drive
2. Run Macrium and restore the image from step 1, overwriting your existing 1st three partitions, leaving C alone.
3. Delete the 490MB Recovery partition.
4. From Macrium, run fix boot problems.
5. Reboot. Open Admin command prompt then run Reagentc /info to make sure that it is enabled. If not, enable it.
   if failed to enable, reboot and try again.

OPTION 2: Assuming you've already had Windows backup with Macrium.

1. Wipe out the first 5 parttiions. (450MB, 100MB, 16MB, C Drive, 480MB)
2. Fresh install Windows 10
3. Restore C drive from backup image, run fix boot problems
4. repeat step 5 from OPTION 1 above.

 

Cannot go into recovery mode in several ways

Problem:

Cannot login into normal mode or safe mode or access anything other than Boot settings.

• Do not get usual login screen.
• Seeing Automatic repair and then BSOD with code 0xc000014c
• That loop continues.

Troubleshooting Steps taken:

• Tried 3 times reset when in "Preparing Automatic Repair" to boot into recovery mode - Failed.
• Created bootable WIndows 10 USB flash drive to go into repair mode - Getting another BSOD with code "Driver pnp watchdog"
• Some times, after "Preparing automatic repair" screen, i get "Your pc needs to be repaired" recovery screen where it shows F8 to go into Startup settings. When i press F8, i get the same screen again in a loop.

Computer: Dell Precision T3500 Workstation

OS: Windows 10 64 bit