I have Windows 7, 64bit with 8 gigs of RAM. Illustrator worked perfectly for weeks than just today it decides to quit. As soon as I open it, the splash screen shows and the interface opens and a couple seconds later it shuts down. No error message.
If I'm fast enough to drop down a menu, it stays open. Or if I open Illustrator by double-clicking an AI file, if I quickly move an object on the drawing, it stops to ask if I want to save changes before exiting. I can't cancel the exit process.
I've done the usual, deleted preferences and so forth. I've cleaned the PC, uninstalled recent applications, ran a registry cleaning scan and cleaned junk files with Crapcleaner. I've removed all recent installed fonts, turned off the font cache service, restarted umpteen times.
I've downloaded and installed the Adobe 15.0.1 patch that supposedly fixes this issue:
There are no errors in Windows error log about it. All the other CS5 apps work fine.
Finally I completely uninstalled Illustrator, deleted leftover files as well as registry entries, ran my registry clean tool again, restarted, and reloaded Illustrator. No good! Installed the patch again, nope.
So pretty randomly Illustrator just died and nothing seems to fix it. What gives? This is my production at-work PC and I use it to print our graphics! GAAAA!