Forum Discussion
2025-10 Cumulative Update for Windows Server 2019 (KB5066586) Undoes Update on Reboot
So even though I ran DISM /Online /Cleanup-Image /ScanHealth, and no errors were found, you still recommend running DISM.exe /Online /Cleanup-Image /RestoreHealth ? I am glad to give it a try.
I don't have a similar image to copy from unfortunately.
I checked the CBS log file, but it does not go back far enough to get information on the install failure. I'll save this log file after my next attempt. I am also going to update the drivers on this server.
I will rerun DISM with the RestoreHealth option this Saturday and report back.
This has been a tough one to diagnose. I greatly appreciate you help with this.
Sorry for the slow respones. I was on a work trip.
I appreciate these tips. These are some good ideas. I'll give them a try this coming Saturday. I have to wait until the weekend, because this is a production server. I'll report back on Monday, Nov. 17.
I manually downloaded the 2025-12 Cumulative Update for Windows Server 2019 from the Windows Update Catalog. It did not install. I also tried an older 2025-07 Cumulative Update and it didn't install either.
Based on the link to the Microsoft Learn page, and reviewing the cbs.log file, it appears the drivers are not loading. There are a number of drivers that are failing to install. I'm not sure how to get around this.