do you want this app to make changes to your device?

[MarioFesnic]

Hi,

I have recently downloaded an app and it has asked me if i will let it make changes to my device.

I accidently clicked allow instead of no and it turns out it is a virus.I need help on how to make it not make changes on my device because everytime i remove the virus a new one appears.

So in short how can I make to that thing can not make changes to my device.

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