Last night my macbook froze randomly and I had to do a force shut down. Ever since it has not been able to boot up past the grey screen with the apple and spinning wheel. I am using a macbook pro that runs on Lion. I purchased it last August, but I am pretty sure I killed the warranty because of a spill on the keyboard a few weeks ago. I am not sure if that is what is causing the problem, or if it is something else. (Spill details: olive oil that invaded the chassis, nothing short circuited or stopped functioning. Had it opened up by two different professionals who did their best to remove the oil. Was told that most of it was gone or at least congealed. The only problems I have been experiencing since are a slightly sticky keyboard) Here is the info about my booting up problem so far: -There are no peripheral devices connected -A reboot in safe mode has not worked -resetting the NVRAM / PRAM did not work -I started up the disk utility, the S.M.A.R.T. status says the disk is verified, however when I try to repair it a lot of error messages come up saying "missing thread" or something along those lines. After a bunch of those, it says that it cannot complete the verification/repair of the disk. I have tried this multiple times. The same thing happens in single user mode when I try the fsck -fy thing. In disk utilities, a message pops up telling me that I need to save what files I can, reformat, and then reinstall Lion? (not 100% sure about the last part, can't remember exactly what the message said) -In the utilities menu, I have gone to the reinstall Lion option. When I reach the point where it asks me to select the disk, it says my disk is locked and I can't continue any further I have come to accept the fact that I will probably need to erase and reconfigure the disk (unless anyone has any other suggestions...which would be great if they did). What I want to know are two things: 1. How can I save my files (if I even can)? Preferrably without having to take it in somewhere, I am a student and really can't afford it. I backed up most of my files about a month ago, so if I can't manage to save any, it won't be devastating. Just mildly irritating. 2. How exactly do I reformat the disk? If reformatting doesn't work and it turns out my hard drive is dead, I also don't know what that entails besides sucking it up and taking it in somewhere. Also I feel like I should mention that I don't have the physical OS X disc on hand. I can't even remember getting one when I bought the computer.