For a fair amount of time, I thrive to do something for Android. Some funny genius staff, as I usually like to. I’ve tried Android Studio 2.1.something, pecked at it a little, tried several lessons and put it aside. While installing I hit the bug with a non-ASCII path to installation, reinstalled several times. At some point a had to clean up my system (Windows 7) and reset entire notebook to its factory settings. Then I installed Android Studio again, worked with it little more, installed concurring IntelliJ IDEA, worked in it without Android.

They periodically updated, I added SDKs and virtual devices and for yesterday I had a unmaintainable chunk of installations, where I did not know, what uses what, with probable duplications and dead data. Unable to run debug on a virtual device for IntelliJ IDEA, I uninstalled all I could and deleted the rest. All Android, all Android SDK and so on. It freed me about 50 GB of space. Fifty OMG GB!

Now I chose to use IntelliJ IDEA only, so I went by steps from manual carefully avoiding any space-wasting.
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