Let me see if I've got this straight...

I recently bought a Dell computer, which came with Windows 7 pre-installed. I promptly replaced that with Linux, and then set up a virtual machine and installed Win7 from the disk I got. I'm not sure how, but my Win 7 has detected some anomaly, and now is telling me that I have a Win 7 that is "not genuine". Every time I start it up it wants me to connect to Microsoft to purchase a license for this pirated copy.

I also read recently that Dell is refusing to reimburse anyone for computers which came with Win7 pre-installed, since this came at "no charge".

Ok. I can accept this. I'd like to purchase 10 copies of Win7 at no charge, please.