Laptop unable to use BitLocker on drive with VSS service storage dma tampering

4.5

Direct Memory Access (DMA) is being used to bypass VSS security.

Symptoms
  • BitLocker error
  • Memory corruption
  • System crash
Possible Causes
  • Hardware attack
  • Malicious PCIe device

Step-by-Step Fix

1

Enable Kernel DMA Protection

Check BIOS and Windows settings.

2

Remove External Devices

Unplug Thunderbolt/PCIe devices.

3

Update BIOS

Fix DMA security bugs.

When to See a Technician

DMA attacks can read/write system memory without the CPU's knowledge.

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