Hi everyone! I'm posting here because I'm pretty much running out of ideas on how to get my MBP (mid-2010, 13", 2.4ghz) to get back together with OSX. At some point, I got massive slowdowns in Lion and tried to reboot but couldn't, and was eventually redirected to 10.7's recovery partition. Repair disk utility told me this disk could not be repaired and I had to format, which I did, but since then I haven't been able to install OS X at all.. I've first tried to install Lion from the recovery partition, no success. Then I've tried to install it from a bootable USB stick. Same fate. Then I've tried to install SL with the original DVD. failed again. (all of those operations were tried several times on a GUID partitioned, S.M.A.R.T.-verified HDD, on an OS X extended journalized partition) I've run the apple hardware test which found a 4 hdd/11/40000004: sata (0,0) error. As a last option I've tried to install windows 7, and there comes the big surprise, it works flawlessly -I mean as flawlessly as a windows can work - ! (I'm writing this message from my windows partition...) My question is, why can't I install OS X? If my HDD was dead, I guess W7 wouldn't work either, would it?