I'm wondering if someone can help me. I bought a new macbook air today and I used my external hardrive from my old macbook to transfere the data to the new one. Now it's saying my startup disk is almost full. When I go to finder it says I have 3.7GB available. I tried to use bootcamp assistant and it said I needed 10 gb space at least. I can't see how it could suddenly be full and I remember my old system having something like 89gb free before it broke on me. I don't know where the extra files may be hidden. Any ideas?? I used time machine for the transfere if that makes a difference.