Hello and sorry, I know there are many threads about this topic but after doing some research I couldn't find any suitable for my problem. So, I have 3-months-old Air with double memory 250 MB which keeps telling me the startup disk is full. Programs don't run anymore and I can't save any material, which makes my life difficult since all my life goes through this laptop I don't download music nor movies. Only thing that could take the storage are pictures, but when I go to see the storage to "About this Mac" it says that all the storage is taken by the category "other". My desktop Mail ahsnt worked for a while, can it have something to do with this? It really feels that there is something weird, a file duplicating itself or something. Because I keep removing more and more files and it just gets fuller. I really pray for someone to help me, I can't operate anything anymore I have done so far everything I can/know: - removed all the useless files - emptied trash (also iPhoto) - checked big useless caches and removed them Thank you so much.