You can find it in Computer Configuration\Administrative Templates\Windows Components\Store . Double-click it to open the Group Policy Editor. In the properties screen, switch “Turn off the Store application” to “Enabled” to disable the Microsoft Store, or “Disabled” to unblock it.
How do I activate the Microsoft Store?
Select Start then enter Microsoft Store. Select it to open the app. If Microsoft Store won’t launch, get more info at Microsoft Store does not launch.