Hope you are doing well.
You can try making use of our Application Control rule set from rule set library. We have an application for Instagram present.
In the request cycle rule add Instragram in Application.Name.
To block applications and individual functions according to a list, the Application.Name property is used.
Please refer below link regarding more info about Application Filtering:-
i am talk about windows store applications i try to do that , but mwg couldn't block the apps .