Windows Activation

I just reformatted my pc. Windows won't accept the Prod. Key. I'll work that out with the place I bought it, but my question is this: I'm retiring. I LIKE to "play" with pc's & experiment. I'm gonna be formatting & reloading HD's etc. Is there something I can buy so that each time I reload a Windows OS, I can have it activated? Do I need to buy a full copy of XP(Home or Pro)? Is there a limit to # of times I can reload it? Is there such a thing as a "universal" product key?

 

Hello miracleman,

http://aumha.org/win5/a/wpa.php WPA, what it is and how it works

http://netsecurity.about.com/od/windowsxp/qt/aaqtwinxp0829.htm Transferring WPA info on the same computer.

Regards - Charles

 

CHARLES; Thanks. That explained alot.