It says "Activate Windows now" "The activation period has expired." The two choices are "Activate Now" and "Ask me later."

It also says "This copy of Windows is not genuine." I'm not sure entirely what to press. Obviously "Activate Now" is the logical option, but I am using a temporary HD until Newegg replaces their fucked up one that they sent to me. What should I do in this situation?

You should probably call them and figure out what they gave you.. How did you get it? Did they give you an installation disk or anything?

Anything with a cd-key looking thing at all?

Got a brand new copy of Windows 7 from Newegg with the disk and everything. I already entered the CD key when installing Windows 7.

Okay, what happens when you click activate now?

I'll try it in a second. I just built this whole computer last night, so I am installing all the drivers and shit.