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Possible Duplicate:
Install Windows XP to USB Hard Drive and Run from It
Can I run Windows XP from a USB flash drive?

I know how to make a bootable flash drive, but when I attempted to make Windows XP boot up it said

BOOTMGR is missing.

I tried it with two .iso files, but got the same error. What can I do to make Windows XP bootable from a flash drive?

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marked as duplicate by Oliver Salzburg, Moab, random Mar 14 '12 at 16:34

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

Windows XP doesn't boot from a flash drive unless you modify it. – Blender Mar 7 '12 at 17:42
up vote 1 down vote accepted

I've used WinToFlash to successfully install Windows XP RTM on an Asus EEE PC 900HD.

Wanted to install a nLite'd version with SP3 slipstreamed but got BSODs on install. RTM ("SP0") worked OK though.

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Forgot to say thank you. :P – JohnnyBoy Jul 11 '15 at 9:42

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