I am new to this site..... I have been having trouble installing any updates to my macbook for the last 9 months. Im still using itunes 10 its giving me the error message unexpected error occurred. I dont know what to do I dont want to have to wipeout my entire mac as I was told at the apple store because they did not know what was wrong either. I tried intalling the 8 items that needs to be updated individually still no luck.. I even tried from apples website... Has anyone had this happen if so please help!