Other Windows 8 FeaturesSimplified Desktop for increased speed: Microsoft hasn't removed the Desktop, and you can still use it to manage your files or open many of your existing programs. However, it has removed some of the transparency effects that often caused Windows 7 and Vista to run slowly. The new Desktop should run more smoothly on most computers.
No Start button: The biggest change to the Desktop is that there is no Start button. In previous versions, the Start button was a very common place to go to launch apps, access settings, or search the computer. Although these features are now accessible from the Start screen, many people may find it disorienting to use Windows without the Start button.
The Desktop no longer has a Start button
Improved security: Windows 8 has a built-in antivirus program called Windows Defender, which can also protect you from other types of malware such as spyware. The built-in Windows Store also helps to keep you and your computer safe by showing you what information each app will have access to. For example, some apps have access to your location, so if you're uncomfortable sharing your location you can decide not to download those apps.