I downloaded the mavericks install, and then my comp told me to erase my harddrive because its corrupted. All my files are on there, now it wont even let me open my laptop without having me reboot to the comp to the original state. how do i undo this all?

How do I just go back to using my computer? the system is telling I have to erase my entire hardrive. Im not a computer savvy person, I dont know what to do....I have a MacBook Pro 2010.
PLEASE HELPPPPPP
MUKTI.

Mukti,
did you try to install Mavericks, or did you only download its installer without running it? Which version of OS X is currently installed on your MacBook Pro? Do you still have the two grey installation DVDs which originally came in the box with your MacBook Pro? Do you have backups of the files on your MacBook Pro from before you downloaded the Mavericks installer?

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