Today marks the official launch of Microsoft's Windows 8.1 operating system, you can download it over here. Windows 8.1 is provided as a free update to all Windows 8 users. If you have an older version of Windows installed, upgrading to Window 8.1 will cost you $119.99 or $199.99 if you want Windows 8.1 Pro. Depending on your Internet connection, the download may take some time as it weighs in at over 3.6GB.
Windows 8.1 gives you the familiar desktop with its taskbar and Start button, plus a beautiful new Start screen that you can customize with your favorite apps, people, and sites so that everything you love is just a tap or click away.
You also get built-in cloud storage for anytime, anywhere access to your photos and files, beautiful full-screen browsing with Internet Explorer 11, plus an exclusive collection of built-in apps like Photos and Mail, with many more apps available from the Windows Store.