Last month, while we were all distracted by iPhone hacking and Jay-Z's web fiasco, Microsoft silently bumped off the ability for IT administrators to easily take the Windows Store off Windows 10 Pro PCs.
Removing the software store, along with other bundled apps, from work machines is normally a good idea to prevent users from installing crap, breaking things and calling the help desk, and generally wasting time at their desks.
The Redmond giant quietly posted a support notice warning sysadmins that for Windows 10 build 1511 and later, the ability to remotely disable the Windows Store through Group Policy settings has been revoked.
If you want to use Group Policy or AppLocker to remove or disable the store in the latest Windows 10, you must be using the Enterprise or Education editions. If you're using Pro, you can no longer use Group Policy, and Pro doesn't feature AppLocker.