Code 55 - CM_PROB_CONSOLE_LOCKED

This Device Manager error message indicates that the device is blocked from enumeration due to a Group Policy / MDM (Intune) policy to protect from DMA attacks.

Error Code

55

Display Message

"This device is blocked from starting while the user is not logged in. (Code 55)"

Recommended Resolution

For more info on Kernel DMA Protection, see Kernel DMA Protection and Policy CSP - DmaGuard.