Quote Originally Posted by ~~smart~fool~~
Xp keys can only get used a few times so any on the internet are most likely already used. Get 2000 or vista
While that is totally true, there are certain versions of Windows for people learning how to perform a XP install that allow unlimited installs on the same CD key. Provided you install this type of Windows (search for 'student release') and prevent WGANotify from being downloaded, it will function as normal.

However, this is the reason free operating systems were created and if you don't have the ***** to buy a copy of Windows, you should try one. A lot of open source operating systems can pretty much perform all the functions Windows is capable of, and for the rest there is WINE.