I booted up my pc and relized all my personal data Was missing. All my photos,videos, programs, even some Windows programs including wizards. The next day when I Tried booting up the computer said it can't because it was Missing an essential drive. How do I fix this?
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From what you describe, it sounds as if your drive is quickly going bad. As @KCotreau mentions, we'll need more info to help, but I wouldn't hold out much hope. I suggest leaving it off until you can get someone to look at it.