While starting to work on Ai, the system shuts down unexpectedly in 1 or 2 minutes - after opening any ai files. I had a chat with Adobe support team and they have advised me to delete the Creative Cloud app, after which the app was working fine but fonts were missing. Because I required the fonts to work on - I have reinstalled the CC app, then the issue started again. Request to please support in resolving the issue or suggestions.