Laptop BitLocker failing on drive with VSS service storage dm-delay tampering

4.5

Device Mapper delay (dm-delay) has been tampered with.

Symptoms

BitLocker error
Access Denied
Service crash

Possible Causes

Malware
Buggy driver

Step-by-Step Fix

1

Update dm-delay Drivers

Ensure the driver is original and signed.

2

Check for Rootkits

Look for viruses that target dm-delay.

3

Run SFC

Repair system files.

When to See a Technician

dm-delay simulates slow drives; tampering can cause artificial performance drops.

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