This is a very simple to use program written in simple batch that will activate windows completely free. This uses KMS server to establish the keys on your system for completly free. Note: OctoActivate is a old project that I decided to finish. It used to be free with my old project called Octo and this was just one of the tools that it had to offer.
This is currently working for both Windows 10 & 11 all versions, and is the Pro version of Windows. (This is demonstrated in Windows 11)