Issue reported: After SCCM 1606 upgrade windows 10 is not listing on product tab
Step 1: Validate KB3159706 is present in server 2012. Follow below step how to validate
Open Control Panel –> Programs and Features –> Click on Installed Updates
Search with KB3159706 it will listed as like below screen shoot.
Step 2: If above KB is not installed then install though windows update for more refer this URL: Click Here
Step 3: After installation of the KB3159706 Manual step require to complete installation.
Please refer this URL for step by step Guide line URL: Click Here
Thanks & Regards,