How to control user installed apps?
On a rooted device, it is possible to disable/enable user apps using a terminal emulator.

To do so, open a terminal of your choice, enter

su


to acquire root privileges and then enter

pm disable &lt;packagename&gt;


Take care to replace &lt;packagename&gt; with the package name of the app you wish to disable (for example, if you wish to disable WhatsApp, your command will be pm disable com.whatsapp).

To revert the process and thus enable a disabled app, acquire root privileges and issue

pm enable &lt;packagename&gt;


Again, remember to replace &lt;packagename&gt; with the package name of the disabled app you wish to enable.