I had to format my Windows laptop so I copied the SDK folder (because it's about 30 GB large) and i pasted it in the same place on the new Windows copy. 

Now when I start Android Studio and SDK Manager everything looks fine and all tools & packages appear as downloaded, but when I start an emulator to test my app, it says `Get Google Play Services` which I already have in my `gradle` as follows: 

> 
> compile 'com.google.android.gms:play-services:7.0.0'
> 
> 
> 

It was working fine on the old Windows machine but now it refuses to detect `Google Play Services`. 

Also the emulator is very slow, it used to be very fast on the old Windows machine.

What am i missing here ? 

Thanks in advance.