Start up issue
imac is unable to open as it is struck in loading screen
imac is unable to open as it is struck in loading screen
Did you try to use safe mode?
Use safe mode to isolate issues with your Mac - Apple Support
Did you try to use safe mode?
Use safe mode to isolate issues with your Mac - Apple Support
Doeither of these methods on powerup work?
Shift key
CMD+r keys
Start up issue