For XP Pro
Run Magical jelly beans keyfinder V1.5b3. Keyfinder.exe 08/21/2003. (enclosed)

1. Read the current s/n.
(I wrote my original down, just in case.)

2.Select Options,Change windows key.


3.Enter this number: redacted.
(Left out for obvoius reasons.There are hundreds of them out there. I know that Webroot, for examale reads these posts aboot s/n"s)

(Never the less, I have included lots of s/n I got right in this group from some very helpful folks.I was afraid to run the activator killers and such. I guess you just have to keep tying different s/n like I did (sorry) What a pain in the ass, but as they say:The truth is out there. I obviousy don't want to post mine on the internet!)

4.Select change.Enter new s/n.
Install SP2.

If you get a goods/n I promise you this works. Hint:None of the keygens I tried worked, but the system let me know they were not valid s/n's. So, that saved alot of time.

This WORKS. I take no credit for the cracks, just the determination to beat MS.
I got all the tools right here. 
I have included only what worked for me.

Thanks to Goldies and magicalJellyBeans for the key finder/changer.
There is so much shit out there that just plain don't work.
Good luck.
