Laptop BitLocker failing on drive with VSS service thread tampering
4.5
Malicious threads are being injected into the VSS service.
Symptoms
- BitLocker error
- Service uses 100% CPU
- Service crash
Possible Causes
- Malware
- Buggy driver
Step-by-Step Fix
1
Check Thread Stack
Use Process Explorer to see where threads originate.
2
Scan for Malware
Look for thread-injection attacks.
3
Run SFC
Repair system files.
When to See a Technician
Thread injection is a common way for malware to execute code under a trusted process.
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