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I have Macbook Pro. I have a portable USB hard drive and I want to install

  • Windows 7
  • Windows XP
  • Ubuntu

on that portable hard drive.

Does anybody know how to install all three operating systems on the drive? I do not want to touch my Mac hard disk or OS X.

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    bear in mind, even if this is possible, running an OS like Windows over USB would be painfully slow.
    – tombull89
    Jun 17, 2011 at 7:35
  • @tombull89 slow is ok for me.
    – Rahul Vyas
    Jun 17, 2011 at 8:00
  • Windows XP will not run on a USB device without some serious hacking.
    – user3463
    Jun 17, 2011 at 16:30
  • For the Linux part, use UNetbootin. It's a dead-simple application to use. You go through the wizard, select the Ubuntu ISO file, select the distribution and the external hard-drive, and you're set. For Windows 7, here is a very detailed howto, but it requires a Windows installation to begin with. I'm not too sure it'll just run on the Mac without any further hacking.
    – slhck
    Jun 18, 2011 at 15:20
  • @slhck I don't want bootable windows. I just want to install windows on an external hard drive instead of internal because my internal has mac osx and I don't want to touch it.
    – Rahul Vyas
    Jun 18, 2011 at 17:04

1 Answer 1

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Your best bet is to defragment and then partition your hard drive.

It's virtually impossible and really impractical to run Windows off an external/flash drive. If it's for programs that do not require much computing power, use VMware or Fusion...

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