wont boot

I bought Skyrim. had to update directx to play. updated it and restarted my pc. now it wont boot. i run Startup Repair tool and all it says is that its unable to fix the issue. so i go to restore. but it wont let me restore. just says it failed to restore and gives me error code (0x80070003). none of the restore point work. tried to boot safe mode and every other boot option, none work..
It wont even perform a backup -.-
do i have to reset to factory settings? if i do, does that mean i lose my things like Windows, realtek software, and al this stuff? and any advice to fix my pc? Its an HP Pavilion p6 2143w windows 7 home

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