Are there any suggestion on why my imac (1.5 years old) takes 15 min to shut down and how to stop this from happening? I have not had it on the internet for about 6 months and now if i connect to the internet it take 15 min to shut down. If i haven't connected to the internet it's fine.
I would be grateful for any help on this.




I would be grateful for any help on this.