Mac OS Mountain Lion Shuts down at Apple logo with a progress bar appearing under it.

Question

Last Night there were two updates available which i downloaded and after that it asked for a restart, when i restarted the Mac, it gave me a progress bar for the updates at the middle of which it said, Installation of Updates can not be Completed and My mac book froze. After that i Shutdown my Macbook Pro by holding the Shutdown button for a little while.
When i restarted the Macbook Pro, it gave remained at apple logo for a while then a progress bar appeared after which it shut down itself and it is doing the same since then.
I have got windows over Boot Camp in my Macbook Pro and i can boot into Windows which is running fine and i can access all the data on my Main Partition through Windows as well but i am unable to boot into Mac os Mountain Lion.
I have tried Repairing the Partition by going into Recovey and it Fails, I have tried Resetting the PRAM and that hasn't worked either, i have tried re-installing the Mac os Mountain Lion from Recovery but that says that all my Partitions are Locked.
I haven't got any backup of my data through Time Machine so i was thinking as i can boot into Windows and access the data and as all this is because of the Installation of Updates Failure so there should be some way to manually edit the Boot Files to trick the Mac book into thinking that there weren't any updates or to simply clear the data from Updates.
Can anyone please help me if you have any better suggestions.

Answer 1

If it's still under warranty or with AppleCare (even if it isn't, really) take it in to an Apple store.  If you can get at your personal files from Windows, copy them to an external drive first.  That includes anything you have in Windows that you need to keep.  Sounds like the drive is going south and if it has to be replaced, you'll lose everything if you don't have it backed up.