Yup, the best way is to go get a new one from Microsoft off of TechNet before August 15th: http://tinyurl.com/832nco
However, beyond that, you can read your license key from Windows using a large number of tools out there on the net. I have a purchased tool that I use to catalogue software and hardware called SIW. They have a free personal edition I beileve. http://www.gtopala.com/ You can use that to get it also. There are lots of other tools that are similar also that are available around the net.
Jun 25, 2009 Rating
be fast by: amj2009
you can still get them on the w7 download site of microsoft...
But be fast, time is running out...
Jun 24, 2009 Rating
Key for windows seven rc build 7100 by: Anonymous
for 32 bit and 64 bit
MM7DF-G8XWM-J2VRG-4M3C4-GR27X