[Need Help]MBR to GUID partition table help


  1. 123386761
    Posts : 37
    Windows 7 Ultimate x86/Snow Leopard 10.6.6i/Ubuntu 11.10/Android
       New #1

    [Need Help]MBR to GUID partition table help


    Hey guys. I have a problem. My netbook came with Windows preinstalled with all of the recovery partitions, etc. I want to change the drive from MBR to GUID. Is there a way that I cam do this without losing all of my partitions? I'm quad-booting from 3 drives and it'd be nice to be able to use one drive :P I have tried extended partitons but it's hard to shrink my windows drive to send free space to the extended partition (IDK how...)

    Please help me fix this!

    Thanks in advance!
    ~123386761

    **EDIT** ok so I've done some research to find out about something called a "dynamic disc". I am willing to try this if possible
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  3. seavixen32
    Posts : 7,730
    Windows 7 Ultimate SP1 64-Bit
       New #2

    Have a look at this tutorial.

    Convert MBR Disk to GPT Disk

    And this one.

    Convert a Basic Disk to a Dynamic Disk
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  4. lehnerus2000
    Posts : 4,049
    W7 Ultimate SP1, LM19.2 MATE, W10 Home 1703, W10 Pro 1703 VM, #All 64 bit
       New #3

    Why bother?
    Are you running out of drive letters?

    123386761 said:
    I'm quad-booting from 3 drives and it'd be nice to be able to use one drive :P
    You're booting 4 different versions of Windows?
    Last edited by lehnerus2000; 12 Dec 2011 at 09:39.
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  6. 123386761
    Posts : 37
    Windows 7 Ultimate x86/Snow Leopard 10.6.6i/Ubuntu 11.10/Android
    Thread Starter
       New #4

    lehnerus2000 said:
    Why bother?
    Are you running out of drive letters?

    Actually I need more than four primary partitions on my HDD, so that's why I'm using multiple drives :P

    123386761 said:
    I'm quad-booting from 3 drives and it'd be nice to be able to use one drive :P
    You're booting 4 different versions of Windows?
    Hahaha no I'm booting Windows 7, Snow Leopard, Ubuntu 11.10, and Android.
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  7. SIW2
    Posts : 16,149
    7 X64
       New #5

    You would normally need to reinstall to do that.

    Windows doesn't provide any way of adjusting the boot files for EFI boot, and disk mgmt only supports conversion to GPT for empty hd's.
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  8. 123386761
    Posts : 37
    Windows 7 Ultimate x86/Snow Leopard 10.6.6i/Ubuntu 11.10/Android
    Thread Starter
       New #6

    Damn thx anyways :/
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  10. lehnerus2000
    Posts : 4,049
    W7 Ultimate SP1, LM19.2 MATE, W10 Home 1703, W10 Pro 1703 VM, #All 64 bit
       New #7

    There is a "trick"


    I thought that I read somewhere that Linux doesn't "like" the way Windows implements dynamic disks.

    I found this article/blog that describes how to install W7 (Pro and Ultimate) on a dynamic disk.
    Devocalypse - Install Windows 7 on a Dynamic Disk (Pro and Ultimate Only)

    I haven't tried this method. Use it at your own risk.
    Last edited by lehnerus2000; 12 Dec 2011 at 19:19. Reason: Layout
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  11. 123386761
    Posts : 37
    Windows 7 Ultimate x86/Snow Leopard 10.6.6i/Ubuntu 11.10/Android
    Thread Starter
       New #8

    lehnerus2000 said:
    I thought that I read somewhere that Linux doesn't "like" the way Windows implements dynamic disks.

    I found this article/blog that describes how to install W7 (Pro and Ultimate) on a dynamic disk.
    Devocalypse - Install Windows 7 on a Dynamic Disk (Pro and Ultimate Only)

    I haven't tried this method. Use it at your own risk.
    Ok thank you! Thankfully I have Ultimate woot :3
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