ERROR_APP_WRONG_OS 0x8007047F

Error code 1151 · HRESULT 0x8007047F

WINDOWS

The specified program is not a Windows or MS-DOS program.

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_APP_WRONG_OS is a Windows error code (system error 1151, returned as HRESULT 0x8007047F) reported by Windows. Its official message is: “The specified program is not a Windows or MS-DOS program.”

How to fix ERROR_APP_WRONG_OS

  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_APP_HANGERROR_APP_INIT_FAILUREERROR_APP_DATA_NOT_FOUNDERROR_APP_DATA_EXPIREDERROR_OLD_WIN_VERSIONERROR_SINGLE_INSTANCE_APPERROR_RMODE_APP

Source: Microsoft WinError.h

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