Top reasons to upgrade to Windows 8.1
1. It takes up less space
Even though Windows 8.1 introduces many new features, it actually takes up less space than its predecessor, Windows 8. It takes about 8-15% less space.
Windows 8 made it convenient to search for settings, content, apps and web searching. Windows 8.1 takes this to a new level with "Smart Search", it's a visually-driven page that goes in-depth.
3. Automatic App Updates
All app updates will happen in the background.
4. Start Screen Shares Desktop Background
This is a minor feature but it's worth mentioning since many don't like change.
5. Dynamic Lock Screen
You can now play a slideshow of photos on your lock screen.
6. Enhanced SkyDrive Integration
Windows 8.1 makes SkyDrive the default location for saving new documents and has improved this by making it seamless and you'll think that you're accessing these files locally.
For you Facebook junkies out there, there is now a native app available for Windows 8.1.
Give Windows 8.1 a try now by downloading the Preview