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I have external hard drive with some data (movies, music, apps, etc.) and I am wondering whether I can use it as bootable HDD to install windows from it, I have installer on my second PC and I am not sure if the fact I have other data on this external HDD may cause any problem when installing Windows using it? I am trying to install one of the following: Windows 7 Ultimate Windows XP Professional

preferably the solution(s) should apply to both, because not yet decided which one I will use.

Thanks in advance for any help :)

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marked as duplicate by Karan, fixer1234, Kevin Panko, Mike Fitzpatrick, Nifle May 21 at 14:49

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up vote 1 down vote accepted

If you have partition in your external HDD means possible to make as boot-able without affect data.

But if it is single partition, upto i know you can't do it.

Try to make it as 2 or more partition with some disk management tools then make iso to usb with some installers. After that you can. It'll be applicable both windows 7 and xp.

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Thanks Kumar, another question regarding it as I am not sure if disk management tools work the same way with external and internal HDDs? Does it matter? I am just afraid of losing my data after that. –  pzet Oct 5 '12 at 10:49
    
@pzet I cant conform about windows disk management tools. But i can tell Partition wizard 5 and Easeus Partition Manager are better than that. –  Kumar Oct 5 '12 at 11:05

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