GitHub Copilot works by using a deep learning model trained on a large corpus of code from public repositories to understand programming patterns and contexts. It can then provide suggestions to developers as they write code, helping them be more productive and efficient.
It's worth noting that GitHub Copilot is an extension for Visual Studio Code, a popular source-code editor developed by Microsoft. While it's closely related to Microsoft through GitHub's ownership, it's not directly integrated into the Windows operating system itself.