New answers tagged hang
If the process is stuck or has been frozen you cannot do anything except waiting for it to continue or force quit the process. If there was any other option available the applications which get frozen would do this themselves already by default. I'm sorry if this answer doesn't satisfy you, but I've faced the same issues myself. Please note that ...
If it's frozen, you will need to Force Quit it. If the app is enabled for Restore, the document should be fine when you relaunch the app.
Sounds like bad sectors on the harddisc/SSD. I have had similar experience. My Macbook air 2012 froze when I was playing music, everything else worked fine, then one day it totally stopped working (lookup Mac OSX grey folder for more information). I went it by the Apple store and they replaced my SSD.
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