How the Modern Interface is Improved in Windows 8.1
 

Microsoft is restoring the Start button and adding a boot-to-desktop option in Windows 8.1, but they aren’t giving up on the Modern interface. The Modern interface has been dramatically updated, and it no longer feels quite as half-baked.

Windows 8.1 is what Windows 8 should have been, and the Modern interface in Windows 8.1 is what should have shipped in the first place. Microsoft would have seen much less criticism if it did.

http://www.howtogeek.com/167052/how-...n-windows-8.1/