Windows Licensing problem

[Martyuk39]

I supplied 2 PCs to someone and they're both a bit crocked so I want to rebuild - clash between Netgear adaptors and VIA chipsets. I put the stickers on each system with the CD key on like you're meant to, but one has been half-ripped off, so I can't read the key.

Question is - 2 genuine copies of Windows (I'll scan in the invoice for the systems and post if necessary!) - I have 2 CDs but one key. Is there any way of determining what the key is, by interrogating the system? I'm after a genuine way, not a method of bypassing authenticity...

Thanks
Martin

 

[pkme2]

Use Belarc Advisor. Free download and will give all serial numbers on either rig.

http://www.belarc.com/free_download.html

 

[Martyuk39]

That's brilliant - thanks very much!

 

[pkme2]

You're welcome.