ERROR_NO_EFS 0x80071774

Error code 6004 · HRESULT 0x80071774

WINDOWS

The required encryption driver is not loaded for this system.

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_NO_EFS is a Windows error code (system error 6004, returned as HRESULT 0x80071774) reported by Windows. Its official message is: “The required encryption driver is not loaded for this system.”

How to fix ERROR_NO_EFS

  1. Reboot once — many one-off system codes disappear with a clean restart
  2. Repair system files: 'sfc /scannow' then 'DISM /Online /Cleanup-Image /RestoreHealth'
  3. Find the source in Event Viewer → System: filter for this exact code and open its provider link

Related errors

ERROR_NO_RECOVERY_POLICYERROR_WRONG_EFSERROR_FILE_ENCRYPTEDSTATUS_IN_PAGE_ERRORSTATUS_ACCESS_DENIEDSTATUS_INVALID_IMAGE_FORMATSTATUS_STACK_OVERFLOWSTATUS_DLL_NOT_FOUND

Source: Microsoft WinError.h

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