[Nojus Juozapavicius]

So once I used Polaris viewer.It was installed automatically on my phone(Samsung galaxy s3 mini) when I bought it.Now I can't open .apk files.What to do?

[sherri]

Sounds like you used it as a default setting. Try going to manage applications, find Polaris, and uncheck the default area...

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[Nojus Juozapavicius]

Sorry I am new to android.Can you help he how to uncheck default are?

[Devinator]

I'm not sure if that's what you need to do. But, to remove defaults, you need to go into Manage Apps, select the app, then find something like Clear Defaults.

[Shadowriver]

What happens when you want to open apk?