When trying to perform in place OS upgrade on SMP (Symantec Management Platform) server from Windows Server 2012 to Server 2016 you receive message:
What needs your attention.The following things need your attention to continue the installation and keep your windows settings, personal files, and apps.Deployment SolutionAltiris Inventory Solution Language Pack
Windows Server 2012,
SMP 8.6.RU3
Some currently installed components are not supported when they are already installed and trying to upgrade in-place to a new OS version.
Uninstall Language Pack and update the Server OS prior trying to perform OS upgrade