Activation XP

Hello,

My computer crashed and I re-installed XP on it and now I get the message to activate in 30 days or else. When I click to activate I get the message it is already activated. What does this mean?
I changed to date to 30 days ahead to see if the message would go away and now it just goes in lopes activate and already activated, even with the date changed back, it will not openanything but this activation screen.

 

Because you already activated it, microsoft basically wont allow you to activate it again. You have to call microsoft and tell them your situation. They will give you a code to fix it. I had to do the same thing for office xp....my comp got screwed up, so i reformatted....wouldnt let me activate...so i called ms, told them i reformatted and needed a new code, and they gave me one.

EDIT: the reason they do this is for software piracy issues...cant use the product if its already been used once.... one thing you should note though, because that screen auto pops up now all the time, you might have to reinstall xp again...ask ms about that