I have a number of users who are changing from Windows 7 to Windows 10. Many have Office 2010 or 2013, but most don't have there 25 digit key to re-install Windows. I have tried Magic Jelly Bean and retrieved some of the keys to be able to re-install Office on Windows 10 but most are coming up just showing Windows 7 key. How can I find the 25 digit key off the computer or registry if a keyfinder cannot find it? Any ideas?