Microsoft offered free Windows 10 upgrades from Windows 7/8 for years. for accessibility reasons. If you have an old legitimate license key from Windows 7, 8, or 8.1, you can likely still upgrade to Windows 10 or 11 for free.
The most widely used "link" or command for this purpose is the online activation script provided by the MAS repository. It allows users to activate Windows by running a single command in PowerShell.
Some proponents of these scripts argue that software should be free and that activation is an artificial restriction. They claim their scripts are “open source” and therefore transparent.
The GitHub repository titled "github windows activation cmd link" appears to offer a solution for activating Windows operating systems using Command Prompt (CMD) links. The repository's name suggests it provides a method or tool for bypassing or utilizing a workaround for Windows activation, possibly leveraging GitHub's platform for distribution.