On 27 Apr 2006, at 20:08, Eddie Hargreaves wrote: >>> >>> With Parallels, you need to purchase a copy of Windows, right? ... >> >> yes, you're right. i was thinking of clients/users who already own >> windows. > > Correct me if I'm wrong, but a copy of Windows XP that is in use > must be > activated for that computer via the Internet within 30 days of > installation. This is correct. > So if you installed a pre-owned copy of Windows XP onto your Intel > Mac, you > would not be able to activate it because it's already considered in > use on > the PC. You are able to install retail editions of Windows XP on another machine if you (can state that) you have removed it from the machine which it was originally installed. If you are buying a second-hand copy of Windows XP then you should probably ensure that it is a retail edition, that the vendor has uninstalled it from his PC, that the CD is hologrammed and that the license number is provided on its original packaging. > Thus you would need an un-activated copy of Windows XP. Nope. A since copy of Windows XP may be legitimated activated many times, as explained above. > Do many clients/users own a copy of Windows that is unused? I am starting to see copies of Windows XP on an irregular basis that might be considered surplus to requirements. Nowadays I'd think that the people who build & upgrade their own PCs, buying retail copies of Windows to install upon them, are very much in the minority but at one time this was very common practice. XP has been around 4 or 5 years now, and some of these machines, upgraded over the best part of a decade, are still going... even if, eclectic collections of cheap hardware components that they are, they are not going strong. Typically PCs this age are not worth upgrading, considering the price of a new Dell with XP preinstalled and it prolly wouldn't be too hard to find a legitimate retail edition of XP for a reasonable price on the second-hand market. Stroller.