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

4.5

The vssvc.exe file has been modified or replaced.

Symptoms
  • BitLocker error
  • Antivirus alert
  • Service won't start
Possible Causes
  • Malware
  • Corrupted update

Step-by-Step Fix

1

Run SFC /Scannow

Replace the modified binary with the original version.

2

Run DISM /Online /Cleanup-Image /RestoreHealth

Repair the system image.

3

Scan for Rootkits

Find out how the binary was tampered with.

When to See a Technician

Binary tampering is a definitive sign of a compromised system.

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