I have a some deployment scenarios when the customer does not what the Windows Store App on the Task bar on Windows 10.
I have found this GPO settings to remove the store App from the Task bar with out chancing the functionality of the Windows Store.
Create a User GPO
Change the settings: User Configuration -> Administrative Templates -> Start Menu and Taskbar -> Do not allow pinning Store app to the Taskbar
Enable the setting
Deploy the GPO for the users
The Windows Store App is removed from the Task Bar
The Windows Store is still in the Start Layout
It is not possible to Pin the Windows Store to the Task bar again
And the Windows Store App is still working 🙂