: Free for individuals; no product key required (requires sign-in with a Microsoft account).

: Access older versions through the Visual Studio Older Downloads page.

You do not need "product keys" from unofficial sites to use Visual Studio 2015. Microsoft provides the for free to individual developers, students, and open-source contributors.

: For a stable installation, download the ISO format (approx. 7 GB) rather than the web installer.

: Choose specific features like Universal Windows App Development or Cross-Platform Mobile Development (Xamarin).