@Malintex_Terek:
I have Windows XP on my laptop, but my Dad says we can't port it onto my desk top computer for some reason and have to buy another copy.
Excuse me? Why won't XP configure on multiple computers? Is there a way for me to get it to work on my desk-top?
Windows XP is registered to a CD Key. There's a million hacks for this, but I'm not going to post them here. Basically, no CD Key will work twice.
There are corporate CD licenses, but they're expensive unfortunately. And if you attempt to clone the CD Key on multiple computers, they'll find out.
It's not really a big deal, though. You just can't get any XP updates and can't run IE 7. Also, you may get a stupid pop-up that asks you to get a valid copy of Windows XP if you download the Windows Genuine Validation Tool (Don't download this!).
If you really want a way around it, PM me.