ERROR_INVALID_DOMAINNAME 0x800704BC

Error code 1212 · HRESULT 0x800704BC

WINDOWS

The format of the specified domain name is invalid.

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_INVALID_DOMAINNAME is a Windows error code (system error 1212, returned as HRESULT 0x800704BC) reported by Windows. Its official message is: “The format of the specified domain name is invalid.”

How to fix ERROR_INVALID_DOMAINNAME

  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_INVALID_EVENTNAMEERROR_INVALID_SERVICENAMEERROR_INVALID_COMPUTERNAME0xC004F0740xC004C0030xC004C0080xC004F2130x803F7001

Source: Microsoft WinError.h

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