SEE: Checklist: Securing Windows 10 systems (TechRepublic Premium) Must-read Windows coverage However, some users may still need to know their Windows 10 product key. When this article was first published in August 2021, Windows 11 was a pending release – now that it’s available, we have tips on how to find your product key in Windows 11. Have you lost your Windows 10 product key? You can find it listed in the operating system itself with a little know-how and just a few simple commands.įor most users, particularly with Microsoft Windows 10, the last operating system you will ever need, there has been no need for product keys because there has been no “new” version of Windows. 3 simple ways to find your Windows 10 product key