Laptop BitLocker failing on drive with VSS service storage dm-crypt-key-export tampering

4.5

Device Mapper crypt key export handling has been tampered with.

Symptoms

BitLocker error
Access Denied
Service crash

Possible Causes

Malware
Buggy driver

Step-by-Step Fix

1

Update dm-crypt Drivers

Ensure the driver is original and signed.

2

Check for Rootkits

Look for viruses that target key exports.

3

Run SFC

Repair system files.

When to See a Technician

Key export tampering can allow an attacker to steal the encryption key.

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