

Last time I've done this, game went down from 25GB down to 14GB.Today, I was really upset since I've noticed that a large chunk of my HD space 'disappeared' without reason and I was searching for the culprit until I remembered HotS and the issue.

Going back even further than that, the earliest. Released in June 2015, the Heroes of the Storm story is one of evolution, change, and a game finding its voice. Every few updates I have to reinstall the game since for some reason it is bloating and occupying too much of my HD space.
