What's asking you to active? The OS or VM? Is this Windows VM 7? What OS are you runnng on the VM?

>I own Windows 7 Ultimate and have installed and activated it. Now I want to run a VM with Window 7. I installed the same on on the VM and now it is trying to activate and tells me i have 21 days left.
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>I thought VM OS was covered under the EULA for the original OS? ? Does MS expect me to spend $300 for an OS for every VM I crank up, run for a while and then blow away? I am on the same box with the same NIC just testing MS Beta software. I have a backup of the VHD /VMS of course from right after I got it all set up. Do I have to blow away every 29 days and restore or what? Can't they tell I"m running in VM when i go to activate???