Kegobeer, my reason is is simple: If you have a valid, legal Windows license, you have no reason to play "the grace game".
Also in this case, the OP's attitude in his response to Joel's simple and valid question was an additional reason.
Kari
Sorry, but that's nonsense. The OP didn't ask how to circumvent activation, the OP asked when notifications start appearing. That is not classified information.
Regarding not playing "the grace game": I have a Technet subscription. I routinely install Windows operating systems and don't bother to activate until 30 days pass. I test drivers, hardware configurations, etc. I have tons of valid, legal keys - do I have a reason to play the grace game?
The OP asked a question, only to be asked questions not at all related to the original question, calling into question the OP's intentions (basically calling the guy a thief). I'd probably respond in a similar way.