I bought a Windows XP Pro OEM from a Pricegrabber storefront outfit. After installing it into my new computer build, I notice it did not ask me to activate - online or phone in. Why? I'm not complaining, just curious whether I received the holy grail of an XP disc? My previous 2 builds, also with XP Pro OEM, all required activation. It reminded you how many days you have left before the deadline.