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Windows Boot Error - Unmountable Boot Volume


I have had my new system up and running for about 5 weeks now with now problems. So today i was on my computer and all of a sudden it freezes. Nothing is responding so i just reset the power. Once i reset the power i get to the logon screen, i logon and then i get a blue screen saying windows has detected a problem and has been shut down to prevent any damage to your computer the under it, it says, unmountable_boot_volume. So i thought my grphix card might have overheated so i try rebooting again about several times with no luck. I try booting with safe mode but still freezes. After about 2 hrs i come back and nothing has changed. Any 1 know any solutions?

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