Avoid Win XP Re-activation

The time may come that you'll need to reinstall your Windows XP. It could happen. Maybe you'll add a new motherboard or hard drive. Maybe you'll get constant errors and problems that just won't go away. Or perhaps you're a neat freak who wants to rid yourself of clutter and start fresh with a clean operating system. If you do reinstall Windows XP, then you'll need to re-activate it too—that is, unless you keep this tip handy ;-)

See, the first time you activated XP it created a file called "wpa.dbl" that lives in the WINDOWS\system32 folder. By creating a backup of this file on disk, you can simply put it back into the folder after reinstalling XP and avoid the whole re-activation hassle. Here's how...

Go to My Computer then select your Hard Drive (usually drive C). Go to the WINDOWS\system32 folder and scroll way down until you find the wpa.dbl file.