This specific message is found in the WindowsUpdate.log (generated via the Get-WindowsUpdateLog command). While "Error 0" typically suggests success ( S_OK ), seeing this log repeatedly alongside a stuck download indicates a rather than a failure. What This Log Entry Means
When managing Windows updates in enterprise environments using or SCCM , you may encounter the log entry: "WU client calls back to download call {GUID} with code Call progress and error 0" . This specific message is found in the WindowsUpdate
Troubleshooting "WU Client Calls Back to Download Call with Code Call Progress and Error 0" Troubleshooting "WU Client Calls Back to Download Call
: If this log repeats indefinitely and the progress bar remains at 0% , it means the client is "waiting" for a resource that isn't arriving, but it hasn't timed out or failed enough to trigger a formal error code like 0x80244019 . Common Causes for "Error 0" Stalls WSUS Windows 10 Updates not working - Server Fault This specific message is found in the WindowsUpdate
: In Windows programming, 0x00000000 means there is no current error preventing the task from running.