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- If it is deployed uniformly through the update deployment tool, it is not necessary to check all servers, just random checks.
- Check the latest update log from Event Viewer > Application and Services Logs > Microsoft > Windows > WindowsUpdateClient > Operational.
- Check the EventID in the "Details" below the event viewer
- In addition to checking Event Viewer for exceptions, you can also check for pending updates and install the latest servicing stack updates. https://learn.microsoft.com/en-us/troubleshoot/windows-server/deployment/troubleshoot-windows-server-update-guidance