Microsoft provided the documentation below. Can Altiris be updated to make it be detected as a workstation OS? Any VM created using Windows 10 Enterprise multi-session is taking up a server license for ITMS.
Release : 8.5 RU4 with no point fixes.
The multi-session operating systems returns the same product code as a server operating system, and though detected accurately by Basic Inventory and Inventory Solution scans, some filters on the back end may not categorize correctly as Windows 10.
If this is noted in your environment and you are on 8.5 RU4 with no point fixes, please apply the latest SMA_SMP cumulative point fix in the article, CUMULATIVE POST ITMS 8.5 RU4 POINT FIXES
If you still see this issue, please open a technical support case for further review.