Laptop unable to use BitLocker on drive with shadow copy fragmentation
4.5
Fragmented VSS shadow copies prevent BitLocker from creating a secure snapshot.
Symptoms
- Error 0x8031005b
- Encryption stalls at 99%
- VSS errors in log
Possible Causes
- Too many snapshots
- Low disk space
Step-by-Step Fix
1
Delete All VSS Snapshots
Run "vssadmin delete shadows /all" in admin CMD.
2
Resize VSS Storage
Run "vssadmin resize shadowstorage /for=C: /on=C: /maxsize=10%".
3
Run chkdsk
Verify filesystem integrity.
When to See a Technician
BitLocker uses VSS to encrypt files that are currently in use; if VSS is broken, BitLocker fails.
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