For most of my customers, Windows licensing is never an issue. They purchase a computer, use it until it isn’t working satisfactorily buy a new computer and transfer their data. There is nothing wrong with that but for people that are in a small business environment or who are dealing with virtual machines (or who have used less than legal software in the past and are now looking to use a legitimate license — you know who you are), there comes the occasional need to change the registered Product Key for Windows. There are many self help registry editing examples that will get you to where you need to be, but I would much rather use an automated tool from Microsoft to make this change.
This site is where you can find that automated tool. You will need to load up a web browser on your Windows PC, click this link and follow the instructions on that page.
