If you have a workstation failed to Windows Update with the error 0x80244022 from a WSUS, the fix is pretty simple and straightforward.
The reason why the error occurs is because the Application Pool that runs the WSUS service stopped.
Go to the WSUS server and open IIS Manager. Click Application Pools, select WsusPool and click Start to restart the Application Pool.
Now, let’s try again on the workstation and see if the updates can go through.