Laptop unable to use BitLocker on drive with VSS timeout errors

4.5

The system takes too long to create a shadow copy, causing BitLocker to abort.

Symptoms
  • BitLocker error 0x800423f2
  • System lag
  • Encryption aborts
Possible Causes
  • High disk I/O
  • Slow HDD
  • Large number of files

Step-by-Step Fix

1

Reduce Disk Load

Close all apps and stop background downloads.

2

Increase VSS Timeout

Modify registry "CreateTimeout" in HKLMSystemCurrentControlSetServicesVSSSettings.

3

Check Drive Health

Slow response times can be a sign of a failing drive.

When to See a Technician

VSS has a default 60-second timeout; on a slow or busy HDD, this is often not enough.

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