One of the biggest criticisms with Windows 8 was that it ditched the Start button, a feature that's been a part of Windows for as long as many users can remember (it was first introduced with Windows 95 and Windows NT). Together with the introduction of the Metro UI, a lot of people found the lack of Start button confusing. So much so, that users actively looked for ways to bring it back (Tom's Guide even ran a story on how to make Windows 8 look like Windows 7, and a big part of that was bringing back the Start button).
