Error Message On Boot: blinitializelibrary failed 0xc00000bb

Hi Guys. One of my computers gives this error upon boot up: "blinitializelibrary failed 0xc00000bb". Anybody have any ideas? Googled a few 'answers', but none (thus far) have worked. Thanks.

JACKSPRATNYC said:

Hi Guys. One of my computers gives this error upon boot up: "blinitializelibrary failed 0xc00000bb". Anybody have any ideas? Googled a few 'answers', but none (thus far) have worked. Thanks.

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Hi @JACKSPRATNYC

Can you tell us what you've tried so far fix this issue?

It may be as simple as resetting your BIOS to defaults and try rebooting.
Or you may have to repair the MBR & BCD
Or you could also try the “Startup Repair” from the Advanced boot options when booting from an installation USB


Repairing the MBR & BCD in WinRE

Boot into the Windows Recovery Environment (WinRE)
- Insert a Windows installation USB and boot from it.
- On the first setup screen, select Next
- Click **Repair your computer** (bottom left).
- Select Troubleshoot > Advanced Options > Command Prompt.

Run Bootrec commands
Once inside Command Prompt, enter the following commands one by one pressing Enter after each command is typed:

Repair the Master Boot Record (MBR)



Repair the Boot Sector



If you get an "Access Denied" error, try running:



Scan for existing Windows installations




Rebuild the Boot Configuration Data (BCD)



If asked to add installations, type “Y” and press Enter.


Restart your system after successfully running these commands, close Command Prompt and restart your system to see if Windows boots correctly.

You could also try simply disabling Secure Boot
- Enter BIOS/UEFI settings.
- Locate Secure Boot
- Set it to Disabled and save changes, try rebooting

Okay gentleman. I'll try all suggestions. Thanks a lot. Really appreciated. I will get back to you and report results.

Hi Guys. So, here's what happened. I discovered that the relatively new Samsung SSD boot drive had a manufacturing defect. Apparently, affecting the boot sector. Using Bootrec or Fixmbr did not work. Fortunately, I had two brand new Samsung SSDs on hand. I put the defective drive into another computer & used EaseUS Disk Copy to transfer its contents to the new drive. I put the cloned drive into the the other computer. It booted into Windows 11 perfectly. The problem drive was still under warranty. I returned it for a replacement. Thanks guys for your advice & assistance. You're the best.