Windows 8.1 support will end on January 10, 2023
support.microsoft.com › en-us › windowsPCs that are running Windows 8.1 are unlikely to meet these requirements, but if yours does, you can purchase and download a full version of Windows 11 Home or Windows 11 Pro or buy from a retailer. If you do choose this path, note that you will need to reinstall your apps (in some cases a newer version may be required) and take steps to transition files, data, and settings since the installation will overwrite the contents of your existing storage drive.
Download Windows 8.1 - microsoft.com
www.microsoft.com › en-us › software-downloadAn internet connection (internet service provider fees may apply). Sufficient data storage available on a computer, USB or external drive for the download. A blank USB or DVD (and DVD burner) with at least 4 GB of space if you want to create media. We recommend using a blank USB or blank DVD, because any content on it will be deleted.