I have this issue on one server but it is important server which I cannot re-install...
Windows cumulative updates for Windows Server 2016 version 1607 x64 keeps failing to install.
SSU updates are being installed successfully, but the CU updates are failing.
So the current version of Windows server 2016 is 14393.2125 which is from 3/13/2018 - this was the last successufully installed CU update.
All CU updates since that date are failed.
Usually after the CU update installation, the server restart takes very long and at the end it is rolling back and the update installation is failed.
I tried also to manually download and install the update but the same happens.
Please suggest how to troubleshoot.