Opening Illustrator CC 2015 without file recovery
The Illustrator auto recovery feature is nice. However, is there any way to switch it off before or during the start of Illustrator CC 2015?
If the file is small but makes the program hang, it opens the file more or less immediately but hangs after that.
The easiest way is to simply save and close your files before closing your computer. Unless you're crashing a lot.
You could uncheck the boxes for the data recovery in the file handling & clipboard section, recovery in your Illustrator Preferences.
If you don't want to turn the data recovery off, in general you can also cancel any action in process by pressing "command" + "." on Mac.