Laptop unable to use BitLocker on drive with VSS service authentication tampering

4.5

The VSS service is failing to authenticate with the system, blocking snapshots.

Symptoms
  • BitLocker error
  • Access Denied
  • Service won't start
Possible Causes
  • Incorrect service account
  • Password sync issues

Step-by-Step Fix

1

Check Service Account

Ensure VSS is running as "Local System".

2

Reset Service Password

Re-enter credentials in services.msc if not using Local System.

3

Check Domain Policy

Ensure no GPO is restricting service accounts.

When to See a Technician

Authentication issues are common in Domain environments where GPOs are strict.

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