ERROR_DRIVER_BLOCKED 0x800704FB

Error code 1275 · HRESULT 0x800704FB

WINDOWS

This driver has been blocked from loading

Windows troubleshooting diagram: Device Manager warning and a system file scan
Windows errors: check drivers, system files and Event Viewer, in that order.

What it means

ERROR_DRIVER_BLOCKED is a Windows error code (system error 1275, returned as HRESULT 0x800704FB) reported by Windows. Its official message is: “This driver has been blocked from loading”

How to fix ERROR_DRIVER_BLOCKED

  1. Open Device Manager, look for yellow warnings and update or roll back the driver
  2. Disconnect and reconnect the hardware; test it on another USB port or machine
  3. Check the System event log for the device's error driver name

Related errors

ERROR_DRIVER_PROCESS_TERMINATEDERROR_DRIVER_FAILED_PRIOR_UNLOADERROR_DRIVER_DATABASE_ERRORERROR_DRIVER_FAILED_SLEEPERROR_SYNC_FOREGROUND_REFRESH_REQUIREDERROR_INVALID_IMPORT_OF_NON_DLLERROR_CALLBACK_SUPPLIED_INVALID_DATA

Source: Microsoft WinError.h

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