In fact, there are many similar suggestions on the Internet... And, as a rule, such keys do not work. You need to choose only verified sites, where there are reviews of other buyers. And, frankly, the price of $2 is too low. That should have alerted you. I bought windows 11 activation key for $29 and I had no problems with the activation. Follow the instructions, enter the key and enjoy the activated version of the OS.