Laptop unable to use BitLocker on drive with VSS service storage dm-crypt-key-import tampering

4.5

Device Mapper crypt key import handling has been tampered with.

Symptoms

BitLocker error
Sync error
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 imports.

3

Run SFC

Repair system files.

When to See a Technician

Key import tampering can allow an attacker to inject their own keys into the system.

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