Laptop BitLocker failing on drive with VSS service metadata tampering
4.5
The XML metadata used by VSS writers is corrupted or tampered with.
Symptoms
- BitLocker error
- Writer failure
- Event ID 8193
Possible Causes
- Disk errors
- Registry corruption
- Malware
Step-by-Step Fix
1
Reregister VSS DLLs
Fix the components that generate metadata.
2
Run chkdsk
Repair filesystem errors that might be corrupting XML files.
3
Check Writer Status
Identify which writer is producing bad metadata.
When to See a Technician
VSS metadata is stored in XML format; if the XML is malformed, the service fails.
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