Disable Windows Store for regular users.
Regular users are allowed to install Apps. This shouldn't be allowed on server . Any GPO I tried on W2016 TP5 had no effect.
Also, I don't understand why an "Application" would not be a "software" and why there is a need for "Application Control Policies" GPO beside "Software Restriction Policies" GPO.
I think that the windows store should at least be Available as a download because there are administrators and power users that use windows server on a laptop or desktop at home, basically use server as a client computer because of the needed roles and features, home labs, etc. Therefore, it should be available as part of desktop experience. I always put server on at least one of my laptops for my home lab, then I will use a few apps from the store, it can';t hurt windows to get more downloads of the apps. You shouldn't just decide that NO One wants the store. it should not be there by default, but definitely should be an option especially for Remote Desktop Servers.
Hi, thanks for the link. This page being focused on Windows 10, so I'm not sure about a Windows 2016 LTSB, though.
Derk Benisch [MSFT] commented
The Windows Store Client will not ship in Windows Server 2016. It was included in Technical Previews to gather additional feedback and data. To learn more, please visit, https://technet.microsoft.com/en-us/itpro/windows/manage/introduction-to-windows-10-servicing#long-term-servicing-branch.