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Hi Welcome to JustAnswer.
What all things you have already tried till now to fix it?
Please try resetting your BIOS setting first :-
Restart the computer and press “Delete” to enter BIOS.* Go to the flap to the right .*Choose “System defaults”, save and exit.
Error Message means that your hard disk is failing. Backup your data ASAP. Find your recovery disc set and install media for all of the programs that you have installed.
Is your PC still in warranty? (standard warranty is one year)
Did resetting BIOS helped ?