unity stop working
at 2016-06-07 18:30:00.
if you are using windows 8 or 8.1 and/or unity3d v4.2.2 sometime unity will stop working before starting a project. so to fix it you need to create a shortcut, right click and go to properties then add this at the end of the target:
-force-d3d11or if you have 2 graphic card, you may what to right-click then under the run with graphic possessor click or the nvidia or amd