I came across an odd issue during my BitLocker/MBAM rollout. A small handful of workstations didn’t have any entries in the MBAM event logs (admin or operational) and if you ran
manage-bde -status on these workstations you would get the following error:
ERROR: An error occurred (code 0x8004100e): Invalid namespace
This error prevented MBAM from automatically encrypting the hard drive.
To fix this do the following on the affected workstation:
Open up a command prompt as an administrator
Navigate to C:\Windows\System32\wbem
Run mofcomp.exe win32_encryptablevolume.mof
If successful you should see the following text:
Microsoft (R) MOF Compiler Version 6.1.7600.16385
Copyright (c) Microsoft Corp. 1997-2006. All rights reserved.
Parsing MOF file: win32_encryptablevolume.mof
MOF file has been successfully parsed
Storing data in the repository...
You should now see entries in the MBAM event logs and MBAM will now be able to encrypt the hard drive.