windows won't reinstall

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  1. fruitbat
    Posts : 43
    home premium 64bit
       New #1

    windows won't reinstall


    I need some major help with this one please I can't get windows to reinstall
    I changed the controllers to ahci (because i think the system isnt reconising my ssd as i only get a 5.9 experience score with it) in regedit which seemed to work then changed ahci in bios then windows won't boot , I've tried to run my genuine windows disk to reinstall windows but it won't get past about 20% then I get 'windows cannot install required files, the file does not exist, make sure all files required for installation are available, and restart the installation, error code 0x80070002
    hope someone can shed some light on this for me as it's sending me crazy
      My Computer
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  3. DocBrown
    Posts : 9,606
    Win7 Enterprise, Win7 x86 (Ult 7600), Win7 x64 Ult 7600, TechNet RTM on AMD x64 (2.8Ghz)
       New #2

    When you change to AHCI after a previous install, there can be major problems. Try switching the bios back to your previous setting & see if it will boot.
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  4. Golden
    Posts : 19,383
    Windows 10 Pro x64 ; Xubuntu x64
       New #3

    Hi,

    Please try the following tutorial:

    SSD / HDD : Optimize for Windows Reinstallation[2]=Hardware and Drivers

    Regards,
    Golden
      My Computer
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  6. fruitbat
    Posts : 43
    home premium 64bit
    Thread Starter
       New #4

    I tried reverting the bios back to IDE but keep getting boot mgr missing
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  7. DocBrown
    Posts : 9,606
    Win7 Enterprise, Win7 x86 (Ult 7600), Win7 x64 Ult 7600, TechNet RTM on AMD x64 (2.8Ghz)
       New #5

    You may have to run repair install from your DVD up to 3 times to repair the MBR. (in the IDE Bios mode)

    MBR - Restore Windows 7 Master Boot Record
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  8. Bare Foot Kid
    Posts : 22,814
    W 7 64-bit Ultimate
       New #6

    Hello fruitbat, welcome to Seven Forums!


    If you're going to do a clean install set the it to AHCI and boot the Windows 7 installation DVD to do the wipe to the SSD suggested here first then the install should proceed without issue and be sure to post back with any further questions you may have and to keep us informed.

    Golden said:
    Hi,

    Please try the following tutorial:

    SSD / HDD : Optimize for Windows Reinstallation

    Regards,
    Golden
      My Computer
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  10. fruitbat
    Posts : 43
    home premium 64bit
    Thread Starter
       New #7

    I tried that but now it can't find my ssd and the load up screen before bios is very slow
      My Computer
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  11. gregrocker
    Posts : 50,642
       New #8

    Do you have the latest BIOS version update? If so, reset the CMOS: Clear CMOS - 3 Ways to Clear the CMOS - Reset BIOS

    Does the SSD register now in HD?

    Unplug all other HD's and peripherals to try install.
      My Computer
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  12. fruitbat
    Posts : 43
    home premium 64bit
    Thread Starter
       New #9

    pressed the clr cmos switch on the back still doesn't show the ssd
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  13. fruitbat
    Posts : 43
    home premium 64bit
    Thread Starter
       New #10

    disk part in cmd showing no fixed disks
      My Computer
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