How to activate the XP system installed by the virtual machine?

Q: I only touched the virtual machine soon, I feel very fun, can install a variety of systems, my system is Win7, sometimes I still need to use XP so I installed an XP in the virtual machine. However, after entering the system, it is actually not activated. How do you need to activate it?
A: The XP installed on the virtual machine needs to be activated? You will not be the official original installed? In the era when XP was already inundated Just go to the next Ghsot version on the Internet, but you need to be aware that the virtual machine installation Ghsot system must first partition and format the virtual machine's hard disk, otherwise it will not be installed. If you don't want to reinstall, XP's serial number is also a large search on the Internet, you can activate it yourself.