ERROR_SYNCHRONIZATION_REQUIRED 0x80070239

Error code 569 · HRESULT 0x80070239

WINDOWS

The SAM database on a Windows Server is significantly out of synchronization with the copy on the Domain Controller. A complete synchronization is required.

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_SYNCHRONIZATION_REQUIRED is a Windows error code (system error 569, returned as HRESULT 0x80070239) reported by Windows. Its official message is: “The SAM database on a Windows Server is significantly out of synchronization with the copy on the Domain Controller. A complete synchronization is required.”

How to fix ERROR_SYNCHRONIZATION_REQUIRED

  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_LOGON_SERVER_CONFLICTERROR_NET_OPEN_FAILEDERROR_PAGEFILE_QUOTA_EXCEEDEDWININET_E_NAME_NOT_RESOLVEDWININET_E_CANNOT_CONNECTWININET_E_SECURITY_CHANNEL_ERRORWININET_E_DECODING_FAILEDCBS_E_SOURCE_MISSING

Source: Microsoft WinError.h

Last updated: