In this guide, we will discuss the reasons for the issue along with all the available fixes. Let’s get started! 

What is b1initializelibrary failed 0xc00000bb?

After researching and studying the use cases, we have made out a list of reasons which could cause the issue: 

Booting sequence is corrupted – If there is a booting problem, you might get the error code every time you will start your computer. You need to change the master boot record, boot sequence, and boot configuration data. Secure boot is enabled – If you have cloned HDD/SSD, you might get this error at startup. In this case, you need to disable Secure Boot to get rid of the error. 4G Decoding disabled – If 4G decoding is disabled, it could cause a problem. You need to enable the 4G decoding feature from UEFI firmware settings. Memory Management registry key – ClearPageFileAtShutdown DWORD is also found to be the culprit of the issue. To resolve the issue, you need to modify the key from Registry Editor. Corrupted system file – If there are corrupted system files, which can’t be repaired using bootrec.exe, chances are the files are the reason for your computer being stuck up on startup.

How do I fix error 0xc00000bb?

1. Enable 4G Decoding

2. Fix the Master Boot Record and rebuild the boot configuration data

3. Disable Secure Boot

4. Make changes to the ClearPageFileAtShutdown key in Registry Editor

So, these steps you can follow to fix the b1initializelibrary failed 0xc00000bb error. If nothing worked for you, an in-place upgrade is advised. If you are stuck in the process somewhere, feel free to let us know in the comments section below, we will be happy to help! 

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