Hello Daniel,
Thank you for contacting the Windows Genuine Advantage (WGA) program forum. Your post is out of scope for the WGA program forum as well as out of our expertise.
There is not an avenue to see or get your Product Key from a computer. There are 3rd party applications available that would allow an end user to do this. We are unable to recommend any of them since it would be against our policy. A well phrased search in your favorite search engine should provide you the appropriate means.
See the following Knowledge Base (KB) article:
KB326246 - How to replace Microsoft software or hardware, order service packs and product upgrades, and replace product manuals
http://support.microsoft.com/default.aspx/kb/326246
Thank you for visiting the WGA program forum.
Stephen
Attention All Forum Users: Please Do Not post your issue in someone else's Thread...Create your own which will help minimize confusion. If any post fixes your issue, please click the "Post was Helpful" button for that post. This will help us showcase the threads that best help our customers. Thank you, Stephen Holm