Share via

Bitlocker Invalid Namespace

Anthony Moore 0 Reputation points
2025-08-28T20:50:07.2833333+00:00

BitLocker backup would not do anything, so I turned off BitLocker and allowed the process to decrypt. Restarted computer then attempted to turn on BitLocker. Invalid Namespace appears. Nothing else.

Windows for business | Windows 365 Enterprise
0 comments

1 answer

Sort by: Most helpful
Most helpful Newest Oldest
  1. Domic Vo 1,015 Reputation points Independent Advisor
    2025-08-29T02:56:23.8866667+00:00

    Dear Anthony Moore,

    Based on your description, the “Invalid Namespace” error when attempting to re-enable BitLocker typically indicates a missing or corrupted Windows Management Instrumentation (WMI) class, specifically related to BitLocker.

    To resolve this, we recommend re-registering the BitLocker WMI class using the following command in an elevated Command Prompt:

    bash

    mofcomp.exe C:\Windows\System32\wbem\win32_encryptablevolume.mof

    After running this, restart the system and attempt to enable BitLocker again. If the issue persists, it may be necessary to repair the WMI repository or review Group Policy settings under Computer Configuration > Administrative Templates > Windows Components > BitLocker Drive Encryption to ensure BitLocker is properly configured.

    I hope this helps. Just kindly tick Accept Answer that others in the community facing similar issues can easily find the solution. Your contribution is highly appreciated.

    Best regards,

    Domic Vo

    0 comments

Your answer

Answers can be marked as Accepted Answers by the question author, which helps users to know the answer solved the author's problem.