12 October 2019

Windows 10 - Recovery / Error code 0xc0000185 / BCD / BitLocker

Recently I suddenly (I thought so) faced with a problem of booting my PC. Windows 10 (LTSB 1607) can't start and shows Recovery blue screen with an error "Your PC needs to be repaired. File: 0xc0000185\EFI\MICROSOFT\BOOT\BCD. Error code: 0xc0000185".


None of the tips from the Internet (e.g. http://www.pcerror-fix.com/solved-windows-10-boot-configuration-data-error-code-0xc0000185) didn't help me (there was no recovery point; bootrec doesn't identified Windows Installation).




To copy my personal data I connected a disk (Samsung EVO 860) to another PC and decoded it (because I used BitLocker). After the disk is back in place my Windows 10 started without any troubles. I don't know what it was - fortuity or a bug, but it helps me.

But what was the core of the issue?

Reviewing Event Log I found that seconds before the windows crash FilterManager register warning #4
File System Filter 'wcifs' (Version 10.0, ‎‎2018‎-‎03‎-‎02T11:23:20.000000000Z) failed to attach to volume '\Device\HarddiskVolumeShadowCopy3'. The filter returned a non-standard final status of 0xC000000D.  This filter and/or its supporting applications should handle this condition.  If this condition persists, contact the vendor.
 Also a day before I installed Windows Store and and Neat Office (because it was free).
I have no idea what exactly it was. At the moment my PC working fine, but the disk is not encrypted by BitLocker.

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