How to Enable Windows Update debug logging
To enable Windows Update debug logging perfom the following. Verbose output goes to the%windir%\windowsupdate.log file.a. Open regedit and navigate to HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate
b. Create a New Key called Trace
c. In Trace, create a new DWORD value called Flags with a Data of 7
d. In Trace, create a new DWORD value called Level with a Data of 4
e. Close regedit
2. Navigate to %windir%, find the file named ‘WindowsUpdate.log’, rename it to ‘WindowsUpdate.old’.
3. Restart the Automatic Updates server and run the “wuauclt /detectnow” command to force an update detection cycle.








