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

4.5

The VSS hardware or software provider has been tampered with.

Symptoms

BitLocker error
Provider missing
Service crash

Possible Causes

Malware
Registry cleaners

Step-by-Step Fix

1

Check Provider List

Run "vssadmin list providers".

2

Restore Provider Registry

Ensure HKLMSystemCurrentControlSetServicesVSSProviders is correct.

3

Run SFC

Restore default Microsoft provider.

When to See a Technician

Providers are the low-level drivers for VSS; tampering here breaks the entire subsystem.

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