Windows XP cannot be booted from a USB fl ash drive?at least that's what Microsoft says. The only condition is that motherboard and BIOS must allow booting by a USB fl ash drive. This feature is usually found in newer motherboards but for older models, a BIOS update should solve the problem. With these tips and tricks, you will be able to come up with a standard bootable version of Windows that includes hotfi xes, service packs and important utilities such as recovery tools all loaded into your USB flash drive (aka USB pen drive, USB thumb
drive and USB stick). According to Microsoft's EULA (End User License Agreement), you are allowed to copy Windows XP to external media such as USB fl ash drive as long as it is used for your own PC. Getting started
For a ?portable XP?, you can do with a USB flash drive with a minimum capacity of 256 MB. However, with the need to include extra utilities, hotfi xes and service packs, we would recommend using at least a 512 MB fl ash drive.
For our test environment, we used the Memorex 1 GB Traveldrive. Booting XP on an Athlon 1.4 GHz machine via 1.1 USB port took no more then 1 minute and we assume booting from a 2.0 USB port should
be even quicker.