installing Win XP to external HD

Microsoft Windows xp professional w/serv...
December 25, 2010 at 15:59:23
Specs: Windows 7
I work for the VA Hospitals--the VA is using WIn XP and NOT WIN 7--SO I must have XP to login in to their VPN. I plan to upgrade my 6 year old laptop running WIN XP to a WIN 7 -- If I partition a new laptop harddrive--I understand that may slow down the entire function of the new computer!@@#!. Could I not run Win XP from an external HD--like a back up drive???? and keep everything separate. I would use the external drive at least twice a day to log to the VA vpn, check schedules, emails, lab results, etc. I think this would work.
Any info about this 'theory' and getting it to work would be greatly appreciated.
the People Plumber

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December 25, 2010 at 16:26:34
You are going to run into several problems. Firstly, XP does not support installation or booting from an external drive. Here's a tutorial on that :
Secondly, most any new laptop you buy with Win7 pre-installed will not have XP drivers available so even if you tried to install XP in a clean internal drive you may find many of the devices won't work. The typical things that people have problems with are graphics drivers, sound drivers, network & wireless device drivers. You will need to research the specs on whatever new laptop you get to see if XP drivers are available for the integrated devices.

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