So as I mentioned, I'm running windows 10.
When I first installed windows 10, visual studio community 2015 installed just fine. Then the licence expired so I wanted to reinstall it. The installation just stops randomly... that it is stuck one one thing.. I also spotted a little connection between the bar saying 'Acquiring' and the second bar.. when the first bar is full, the installation gets stuck on installation of one current installing thing.
I don't know how to explain it though. It just never happened to me. A screenshot wouldn't help and a video would be too long and boring.
I can't really tell if it is installing anything or not... I once let it install whole one day and it was stuck at the same thing that it was when I left home...
Is there any good explaination and or fix for that?
I finally found the solution for this problem! I had to disable Windows Defender, because it was blocking the installation.. It was keeping the installation from running msi files.
To disable Windows Defender, follow the steps on this page: http://www.tenforums.com/tutorials/5918-windows-defender-turn-off-windows-10-a.html
Now the installation doesn't stop/isn't stuck on installing one thing :).
I hope I also helped the others that had the same problem before!