Dual Booting XP with 7 - Now need to reinstall xp


  1. cube3d
    Posts : 7
    Win XP 32 & Win 7 64
       New #1

    Dual Booting XP with 7 - Now need to reinstall xp


    Hi All,
    I have a pc that is dual booting with winXP (32) and win7 (64) both on seperate HD. Win XP was installed first followed by Win 7 using a guide from this site. On start up I get the option to boot 7 or my older system.... all has been fine but I know need to reinstall my winXP system.
    I am a bit concerned if I reformat and install the XP drive this might mess up the dual booting into 7?? Can any one let me know if this is the case and whether i can, and how i reset this up?

    Any advice greatly appreciated
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  3. AddRAM
    Posts : 13,576
    Windows 10 Pro x64
       New #2

    You will need to install EasyBCD to XP, then just add Windows 7 to the boot entry. You may have to run your W7 install dvd to run a startup repair ( up to 3 X ) but it usually fixes it on the 1st go.

    Make a Windows 7 system repair disc 1st, if you do not have a W7 install disc.
    Control Panel>Backup & Restore

    http://download.cnet.com/EasyBCD/300...-10556865.html

    System Repair Disc - Create
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  4. cube3d
    Posts : 7
    Win XP 32 & Win 7 64
    Thread Starter
       New #3

    Thank you. Ill give that a go..
    Can I just clarify... do you mean install easyBCD to the new XP install?

    Guess i better back up on the basis of having to reinstall both just incase.
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  6. Kaktussoft
    Posts : 10,796
    Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
       New #4

    please post screenshot of disk management (from within win7)
    Then I know what's where
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  7. cube3d
    Posts : 7
    Win XP 32 & Win 7 64
    Thread Starter
       New #5

    Here you go.. as mentioned Xp and 7 are on separate physical drives.
    http://imageshack.us/a/img843/7820/diskmag.jpg
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  8. Kaktussoft
    Posts : 10,796
    Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
       New #6

    bootmgr and bootmenu is on winxp partition! If you format it... it's gone.
    Simply reinstall winxp
    Then perform a startup repair from win7 installation CD or win7 rescue CD.
    Then add winxp to the win7 bootmenu using easybcd
    source Dual Boot Installation with Windows 7 and XP

    On the left side of EasyBCD, click on the Add New Entry button. (See screenshot below)
    A) In the top section under Operating Systems, click on the Windows tab. (See screenshot below)
    B) To the right of Type, select Windows NT/2k/XP/2k3 from the drop down menu. (See screenshot below)
    WARNING: Be sure to leave the Automatically detect correct drive box checked.

    C) To the right of Name, you can leave the default Microsoft Windows XP as the name to be displayed in the Windows Boot Manager, or you can type whatever name you would like to have instead. (See screenshot below)
    D) Click on the Add Entry button. (See screenshot below)
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  10. cube3d
    Posts : 7
    Win XP 32 & Win 7 64
    Thread Starter
       New #7

    thank you much appreciated!
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  11. gregrocker
    Posts : 50,642
       New #8

    You must unplug the XP HD first, plug its data cable into WIn7 HD or reboot into BIOS setup to set WIn7 HD first to boot (after DVD drive),

    then mark the Win7 partition Active before running Startup Repair - Run 3 Separate Times
    or it will not write the System boot files to Win7 HD.
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