2 Replies Latest reply: Dec 30, 2013 6:53 PM by AnaMusic
silent_sam77 Level 1 Level 1 (0 points)

I just received the Snow Leopard upgrade disk for my Macbook pro.  I don't have my external hard drive with me to back-up my system.  Is it absolutely necessary to back-up my system before installing Snow Leopard?  Will I lose the content on my computer if I upgrade without backing up? I need to know for sure.


Thanks for your help.

MacBook Pro, Mac OS X (10.5.8)