New
#1
Identify unused product keys
Years ago I update a number of systems from XP to 7P with purchased licenses. Each time I did this I documented which keys were used on which systems. Reviewing this I find that I still have two undocumented keys, one I am sure was used but one may be unused. I no longer have most of these PCs. How do I tell if a key has been used, or better yet identify the HW it was last used on? I don't want to blindly activate a key and end up deactivating some system without knowing which one.