Android Emulator - "Encryption unsuccessful"

Issue

Almost every time I try to open the emulator is giving me this error after a long loading pause.

I have tried to fix it by reinstalling the SDK, but no luck.

Note: I must say that I am new to Android.

Solution

Wiping data in Android Virtual Device Manager helped me in my case.

Tools -> Android -> AVD Manager -> Actions (triangle down) -> Wipe Data

There is also Advanced settings in virtual device's configuration (the pencil) where is a configuration of SD card and internal storage, but I didn't have to change it.

Answered By - maresmar