Excuse my absent mind, I'm new to Mac and still learning here and there. I really should buy Time Machine. I did try searching a bit but was unable to find something. But then again, I was a bit anxious so I didn't really read or search thoroughly. Forgive me T_T I just recently updated my software and now a folder is missing from the original 'Macintosh HD'. There were 6 folders: (Applications, Library, System, User Guides and Information, Users, ???) Unfortunately I don't know what the other one was. It was deleted when I updated my software and can't figure out for the life of me what it was. Yes I realize it may be part of the update from Apple itself, but I'm a bit of a worry wort and tend to cause paranoia upon myself. I feel like the folder is necessary and should be there. - Should I be worried? - Was it part of the update to remove that folder? - How can I recover it?