How to uninstall Windows XP from dual-boot with Windows 8?


  1. gokulnc
    Posts : 10
    Windows 8 Pro 32bit
       New #1

    How to uninstall Windows XP from dual-boot with Windows 7?


    I have a dual-boot system with Windows 8 (which is 99% similar to Win7) and WIndows XP.
    Now, I need to uninstall Windows XP so that I can install Ubuntu.

    But the problem is the partition having XP is active and it is the system drive.
    I think even the MDR is located in XP partition.

    Here's a screenshot of my Disk Management window:





    Please help me to uninstall XP.
    THANKS in advance :)
    Last edited by gokulnc; 07 May 2014 at 22:26.
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  3. gregrocker
    Posts : 50,642
       New #2

    In order to move the boot files to Win8 so it boots itself you'll first need to convert C to a Primary partition: How to set partition as Primary or Logical with Partition Wizard

    Then install EasyBCD (click Download - no Name or Email required) to follow these steps to Move Bootmgr to C:\ with EasyBCD - Windows 7 Forums .

    Once Win8 partition has the System Active flags you can mark XP partition Inactive to delete it in Disk Mgmt: Partition - Mark as Inactive - Windows 7 Forums.

    To avoid having your Linux install interfere, use this method to set up its boot manager: Dual boot Ubuntu-Win7
    Last edited by gregrocker; 08 May 2014 at 00:05.
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  4. gokulnc
    Posts : 10
    Windows 8 Pro 32bit
    Thread Starter
       New #3

    After moving bootmgr using BCDEasy, do I need to restart and then mark XP as inactive?

    How do I mark Windows 7 (8) as active?

    Thanks :)
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  6. gregrocker
    Posts : 50,642
       New #4

    I believe EasyBCD will mark C Active for you which is why Wolfgang did not include it in tutorial. If not the various ways to do this are in Mark Partition Active.

    I've not used Easy to do this with Windows 8 although it does support Windows 8. If there are any problems, confirm that C is Partition Marked Active then run Windows 8 Automatic Repair.

    Did you ask at www.eightforums.com?
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  7. gokulnc
    Posts : 10
    Windows 8 Pro 32bit
    Thread Starter
       New #5

    Yeah I posted a similar thread in it. Since eightforums.com is a bit new, no one's there to reply.
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  8. jimbo45
    Posts : 5,941
    Linux CENTOS 7 / various Windows OS'es and servers
       New #6

    Hi there

    Easy

    Boot windows install disk - choose repair system (it won't find one -- doesn't matter) - get into command mode (tools/utilities ==>command mode)

    type the following in

    cd /bootrec

    fixmbr
    fixboot

    Now all trace of Win XP boot is GONE. Now you can install Windows without any problem.

    Cheers
    jimbo
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  10. gokulnc
    Posts : 10
    Windows 8 Pro 32bit
    Thread Starter
       New #7

    Now, thanks to GregRocker, I have changed the active system partition.

    (jimbo45, sorry to disappoint you, it was not what I asked. Thanks anyway.)

    Now I've formatted the partition having XP, but in boot menu, I see XP listed.
    How do I remove it from list?

    Thanks again everyone



    :)
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  11. gregrocker
    Posts : 50,642
       New #8

    Did you delete the XP partition first, before formatting it?

    Type msconfig in Search box, on its Boot tab delete the XP listing.

    If not there delete it from the EasyBCD Edit OS Menu tab.
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  12. gokulnc
    Posts : 10
    Windows 8 Pro 32bit
    Thread Starter
       New #9

    Thank you Greg, problem solved :)
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