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VDS_E_CANT_INVALIDATE_FVE
IVdsVolumeMF3::FormatEx2 explicitly lists this HRESULT when BitLocker encryption cannot be disabled for the volume. This is a BitLocker state transition at the format boundary, not a generic file-system format error. Disabling BitLocker removes protectors and begins decrypting the volume; suspending protection is different and leaves data encrypted. The VDS operation therefore cannot assume that a merely unlocked or suspended volume has been invalidated for its purposes.
Why this state matters
Inspect BitLocker conversion, protection, and lock status before retrying format. Determine whether decryption is already in progress, automatic-unlock dependencies block disablement, or BitLocker tooling reports another protection error. Do not repeatedly invoke destructive format as a troubleshooting step. Microsoft explicitly recommends decryption when protection is no longer required, not as a generic repair action.
Diagnostic focus
- Query BitLocker conversion, percentage encrypted, protection, and lock status.
- Distinguish unlock or suspend from fully disabling and decrypting BitLocker.
- Check whether automatic-unlock keys or another BitLocker state prevents disablement.
- Retry VDS format only after the required BitLocker transition reaches a confirmed state.
Technical references
IVdsVolumeMF3::FormatEx2 · MS-VDS error codes · Disable-BitLocker · manage-bde status · VDS common return codes
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