Windows XP - Install on multiple systems still limited?

[KingManULTRA]

I have the Windows XP Professional Upgrade edition retail version, installed on one home computer (a system where I have over the years changed major components, like motherboard and hard drive, and re-installed multiple times).

If I were to create a dual-boot system with Vista/XP on my laptop, would XP complain about the installation on multiple systems? If so, any way around this so I can still get all the latest XP security updates?

[Tormentius]

The license you purchased for XP is only valid for one PC. If you want to use it on an another PC then you'll need to purchase another license.