Hey all. For the last 3-4 months I have been dealing with this issue, when Im trying to restart or shut down my Mac, it starts the process, desktop icons and top menu dissapear, but thats it. The finder crashes , and is not responding. I can still use the dock. Only option is to put it on sleep, but right now I need to update to 10.11.6 ,but because of this restart issue I cant. Maybe anyone of you had the same problem and know how to tackle this? SOLVED: I needed to go through the startup/launch app list ,you can access that by going system preferences - Users & Groups - Choose User - User Lists and than uncheck everything. Worked as a charm for me.