These keys are sold by unscrupulous individuals who have access to keys meant for big organisations (think of universities, big MNC, etc).

They will work but if you have to reinstall or reformat Windows you will lose that key. If you call Microsoft to re-activate your Windows, they can even pinpoint which organisation/company that key belongs to.

This post has been edited by ghostcommand: Dec 1 2019, 06:37 PM