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I've installed windows 8 on a blank machine and it worked. Now I'm trying t dual boot Windows 8 on my XP computer. I plug in the USB with the ISO and then restart my computer but when I do my computer just boots into XP without giving me the option to install Windows 8 to my partitioned drive. I also tried with a DVD but had the same problem.

Please help!

Thanks!

When I plug in a USB with windows 8 dev to an xp machine and restart it won't install

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Are you expecting that the Windows 8 ISO is a running OS? Its an install package, that you have to go thru and add to your XP machine in a new partition (if you have a free partition or want to have XP overwritten with Win 8). I don't see a problem here. – jdh Feb 23 '12 at 16:05
    
No.I know I can't boot from the USB. I want to install it onto a partition and the way to do that us by starting up the computer with the USB in it. However my computer seemingly disregards the USB and just boots to XP. – Jack Feb 23 '12 at 17:57
    
That's correct. Unless you add a boot record/file to the USB, and then use either the boot menu and/or modify the bios boot order - its just a non-bootable drive. But you should still be able to continue with the install by manually clicking on the setup.ext file on the USB. – jdh Feb 23 '12 at 18:46
    
If I click the setup.ext file will that install windows 8 on the xp partition or will it give me an option to install on the other partition. Sorry for asking so many questions, and thanks. – Jack Feb 23 '12 at 20:40
    
Running setup.ese for the Win8 Dev Preview will prompt you where you want to install it. It shows the potential locations. Using the Win8 Preview is not recommended on a machine you intend to continue to use for things your depend on (ie you don't mind losing). – jdh Feb 23 '12 at 20:59

You need to create a bootable USB or DVD from the downloaded ISO. Booting to a device with the ISO file on it will not work to get the Dev Preview installed.

If you need a tool to burn the ISO to DVD, use ImgBurn (it is free and a really good software).

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I know I can't boot from the USB. I want to install it onto a partition and the way to do that us by starting up the computer with the USB in it. However my computer seemingly disregards the USB and just boots to XP. – Jack Feb 23 '12 at 17:56
    
@Jack - You still need to make the USB device bootable. Windows is installed in an OS-like environment. If your not getting an option to boot from even a media disk, CHANGE YOUR BIOS settings! – Ramhound Feb 23 '12 at 19:02
    
How? Sorry I'm just not sure what to do once I'm in bios settings(f2 at boot up). – Jack Feb 23 '12 at 20:38
    
How? Sorry I'm just not sure what to do once I'm in bios settings(f2 at boot up). – Jack Feb 23 '12 at 20:38
    
All machines are different, but there should be a boot tab, and under that something labeled "boot order". If USB as a bootable device is supported by that bios, it will be listed there (some older machines with usb aren't usb bootable). If it is there, move it above HD. – jdh Feb 23 '12 at 21:03

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