ERROR_SERVER_SID_MISMATCH 0x80070274

Error code 628 · HRESULT 0x80070274

WINDOWS

The server process is running under a SID different than that required by client.

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_SERVER_SID_MISMATCH is a Windows error code (system error 628, returned as HRESULT 0x80070274) reported by Windows. Its official message is: “The server process is running under a SID different than that required by client.”

How to fix ERROR_SERVER_SID_MISMATCH

  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_SERVER_SHUTDOWN_IN_PROGRESSERROR_SERVER_DISABLEDERROR_SERVER_NOT_DISABLEDERROR_SERVER_HAS_OPEN_HANDLESERROR_RANGE_LIST_CONFLICTERROR_CANT_ENABLE_DENY_ONLYERROR_NO_MORE_MATCHES

Source: Microsoft WinError.h

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