Forum Discussion
Solved
Windows Server 2019 Cumulative updates fail
Hi all,
We have a Windows Server 2019 production server where the cumulative updates keep failing to install since january this year and I'm at my wits end. Currently it's trying to install 2021-02 Cumulative Update for Windows Server 2019 for x64-based Systems (KB4601345) but it keeps failing.
I've tried downloading the update directly from Microsoft as well and manually install it on the machine but this fails as well. I then tried clearing out C:\Windows\SoftwareDistribution\Download and C:\Windows\SoftwareDistribution\Datastore and re-downloading the updates however this doesn't work either. But it does seem to behave differently after this was done, instead of failing it now goes back to "ready to install". Scratch that, it fails with Error 0x800f0985.
I have attached CBS-logs and Windows Update-log.
Might try uninstalling the last successful cumulative update, then install the latest SSU
https://www.catalog.update.microsoft.com/Search.aspx?q=KB4601393
followed by the latest cumulative update.
https://www.catalog.update.microsoft.com/Search.aspx?q=KB4601345
7 Replies
I also tried installing Update for Windows (KB4601383) as it said on the download portal that it replaces the previous update, but this one doesn't install either.
Does anyone have any ideas?Might try uninstalling the last successful cumulative update, then install the latest SSU
https://www.catalog.update.microsoft.com/Search.aspx?q=KB4601393
followed by the latest cumulative update.
https://www.catalog.update.microsoft.com/Search.aspx?q=KB4601345
Dave Patrick , when you say to uninstall the last cumulative update, are you referring to the "Cumulative Update for .NET Framework" or to the "Cumulative Update for Windows Server"?
