ERROR_UNABLE_TO_UNLOAD_MEDIA 0x80070455

Error code 1109 · HRESULT 0x80070455

WINDOWS

Unable to unload the media.

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_UNABLE_TO_UNLOAD_MEDIA is a Windows error code (system error 1109, returned as HRESULT 0x80070455) reported by Windows. Its official message is: “Unable to unload the media.”

How to fix ERROR_UNABLE_TO_UNLOAD_MEDIA

  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_UNABLE_TO_LOCK_MEDIAERROR_UNABLE_TO_REMOVE_REPLACEDERROR_UNABLE_TO_MOVE_REPLACEMENTERROR_UNABLE_TO_MOVE_REPLACEMENT_2ERROR_DLL_INIT_FAILEDERROR_MEDIA_CHANGEDERROR_DEVICE_NOT_PARTITIONED

Source: Microsoft WinError.h

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