pycharm-community-2016.1.3.exe running on windows 7 was working great. I updated the last update suggested update and now the community edition does not start. I uninstalled it, I had to remove registry setting because the uninstaller did not clean up anything. After reinstalling it, it still did not start either using run as admin or just running it from the start menu. I know there is no support for the community edition, I just wanted you to know.