Windows 8 and 8.1 Forums


Win 7 won't boot after successful win8 install

  1. #1


    Posts : 1
    Windows 7 and 8

    Win 7 won't boot after successful win8 install


    I did a dual boot install of win8 with a perfectly working win7 laptop. I can see both choices in boot manager but when I select win7 it's telling me there's a missing component refusing to boot and looping me back to the boot manager... I can run windows 8 with no problem but 7 refuse to boot. Repair with windows 7 DVD does nothing, I already tried... I need help. Looks like the MBR is broken or something.

      My System SpecsSystem Spec

  2. #2


    Tropical Island Pair a Dice
    Posts : 3,030
    Windows 8.1 Pro x64/ Windows 7 Ult x64


    Try running startup repair three separate times with reboots after each run.

    Startup Repair - Run 3 Separate Times
      My System SpecsSystem Spec

  3. #3


    Welcome to EF, Moditgrandslak

    Running startup repair for three times with restart should solve the issue, as Dave suggested, but as Win 8 is the later version, a successful Win8 installation should add the boot entry of windows 7 automatically .

    For better understanding of the situation, can you post a full screen snipshot of your windows 8 disk management window ?
      My System SpecsSystem Spec


  4. #4


    So Cal
    Posts : 151
    Windows 7 Ultimate 64 bit Steve Ballmer Signature Edition


    Not just a simple boot.ini edit???
      My System SpecsSystem Spec

  5. #5


    Quote Originally Posted by Darryl Licht View Post
    Not just a simple boot.ini edit???
    I am not sure that windows 8 uses a boot.ini . Wasn't it dropped from vista and onwards ? is it back again ?
      My System SpecsSystem Spec

  6. #6


    Sydney Australia
    Posts : 2,941
    Windows 10 Pro 64bit


    You could use EASY BCD it's a free boot editer that allows you to fully customise you boot options.
      My System SpecsSystem Spec

  7. #7


    So Cal
    Posts : 151
    Windows 7 Ultimate 64 bit Steve Ballmer Signature Edition


    Quote Originally Posted by Arc View Post
    Quote Originally Posted by Darryl Licht View Post
    Not just a simple boot.ini edit???
    I am not sure that windows 8 uses a boot.ini . Wasn't it dropped from vista and onwards ? is it back again ?
    Guess I'm showing my age! LOL! True... but there is still a section in MSCONFIG that might help the OP (Moditgrandslak) do basically the same thing...?
      My System SpecsSystem Spec

  8. #8


    Posts : 28
    Windows 8 Pro x64


    Be very careful. I installed w8 as a triple boot and my Ubuntu and storage partitions were replaced by one corrupt partition. I fixed the problem by using Testdisk to fix the partition table.
      My System SpecsSystem Spec

  9. #9


    Posts : 1
    Windows 7/Ubuntu


    I'm having the same problem as speedy here, tried triple booting Ubuntu, Windows 7 and Windows 8. Corrupted my boot partition for Windows 7 and Windows 8 no longer exists, only Ubuntu works now. How can this be fixed? D:
      My System SpecsSystem Spec

  10. #10


    Sofia
    Posts : 135
    XP, Win7, Win8_Eval


    I did a dual boot install of win8 with a perfectly working win7 laptop.
    Have you created a new partition by shrinking Windows 7 partition ?
    After creating/freeing space for Win 8 have you succesfully rebooted to Windows 7 before installation of Windows 8 ?

    Can you post a snapshot from Disk Management - would be usefull.
      My System SpecsSystem Spec

Win 7 won't boot after successful win8 install

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