Only if you currently have a device running Windows 8 ("Core") operating system can you upgrade to Windows 8 Pro (Professional) using this Windows 8 Pro Pack (upgrade) product. Windows 8 Pro allows you to connect and share your files and also adds enhanced features if you need to connect to company networks, access remote files, encrypt sensitive data, and access to other more advanced tasks.The new Windows 8 start screen is your personalized home for items you use the most and can be customized according to your user preferences. Windows 8 Live tiles provide real-time updates from your Facebook, Twitter, and e-mail accounts. Along with the new Start screen, the lock screen now includes e-mail, calendar, and clock widgets.To access your PC, Microsoft has replaced a standard PIN or password with a swipe gesture; unlock your PC by clicking or swiping preset locations you’ve selected on the lock screen. New functions also allow you to search for your favorite software programs, open, close, hide, resize, or run multiple apps simultaneously with the swipe of a finger or a swipe of the mouse.Windows has also made changes to make your PC more secure by boosting its existing security features and adding "SmartScreen," which acts to prevent suspicious programs or apps from being installed or running on your machine. Finally, Windows 8 also gives you the ability to "refresh" itself to give users a new starting point and a cleaner version of Windows.System Requirements

1 GHz processor2 GB RAM20 GB available hard disk space1366 × 768 screen resolutionDirectX 9 graphics processor with WDDM driverAdditional Requirements to Use Certain FeaturesInternet access (fees may apply)For touchscreen, you need a tablet or a monitor that supports multi-touchMicrosoft account required for some featuresWatching DVDs requires separate playback softwareWindows Media Center license sold separatelyTo access the Windows Store and to download and run apps, you need an active Internet connection and a screen resolution of at least 1024 x 768To snap apps, you need a screen resolution of at least 1366 x 768