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Replaced motherboard, CPU, and GPU, now Windows is broken, keeps saying 'startup repair cannot repair this computer'

I recently upgraded from a Gigabyte GA-F2A58M-DS2 MATX motherboard and an AMD A8 6600K Quad-core 3.9 GHz processor to an ASUS H170M-E D3, an Intel i5-6600K 3.5 GHz LGA1151 processor, and an ASUS GeForce GTX 980 STRIX-GTX980-DC2OC-4GD5 graphics card.

The hardware is fine, but when I turn on my computer, Windows won't start properly and says it needs to run the startup repair. Then that fails, and I get a message saying 'startup repair cannot repair this computer automatically'. The startup repair down't work, I've tried restoring it to an earlier point, I've tried several command prompt solutions from the Microsoft forums, it won't start in safe mode, I've tried to reinstall Windows from the disc, but the prompt to reinstall won't come up.

I really don't know what to do at this point.
3 answers Last reply Best Answer
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  1. HI ducktapespace.!
    How many HDDs and partitioning you have..?
    If you have a C: drive on which only OS is installed then do a fresh install of Windows 7 or any of your desired Operating system.The fresh installing of OS with definitely solve the problem...
    HOPE FOR THE BEST
    if you are satisfied with the answer then hit the best solution button...THANKSS.
  2. I just have one hard drive, and unfortunately, I don't know anything about partitioning or whether my hard drive is (I didn't install it; it's the original that the person I bought my PC from). If I'm understanding your question correctly, no, I don't have my OS installed on it's own drive; it's with everything else.

    I've tried to reinstall Windows several time, but the prompt for installing doesn't appear when I put the disc in.

    (I hope I'm posting this correctly; I couldn't find a button to reply to your answer.)
  3. Best answer
    ducktapespace said:
    I just have one hard drive, and unfortunately, I don't know anything about partitioning or whether my hard drive is (I didn't install it; it's the original that the person I bought my PC from). If I'm understanding your question correctly, no, I don't have my OS installed on it's own drive; it's with everything else.

    I've tried to reinstall Windows several time, but the prompt for installing doesn't appear when I put the disc in.

    (I hope I'm posting this correctly; I couldn't find a button to reply to your answer.)


    ok
    1.start the system (DO THIS WITH YOUR WINDOWS OS DISK INSERTED)
    2. on the BIOS screen enter the boot menu by pressing f10 or f9 or del or any other key, the keys will be displayed on the bios screen.
    3.in the boot menu, your HD, your DVD ROM,USB and 1 other thing will appear.(i didn't remember the name).
    4. leave all and just click on the DVD or CD whatever is written on your boot menu screen.
    5. black screen will appear with written attempting boot from CD.
    6. when there will be dots blinking, press any key.
    7. Surely installation of OS will start.
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