Is there any way to find the key without logging into your Microsoft account? If I understood correctly, the key cannot be found in the registry, and magical jelly bean and keyfinder were no use. I am working on a laptop that wasn't purchased by our company, and the user bought office 2016. Problem is, 2016 doesn't work on our network. So I need to install 2013 but I don't want them to lose their key/purchase. Thanks in advance!