Power8 is one of the Start Menu alternatives that are now capable of working on Windows 8.1 Preview, so in case you want a full-featured Start button on your PC, make sure you give this app a try.
Power8 184.108.40.2069 automatically hides the built-in Windows 8.1 Start button after installation, so it should turn the desktop into a much more familiar working environment.
In addition, it comes with an option to exchange the Start Menu with Search bar when Taskbar is horizontal at the bottom of the screen, according to the release notes. “Benefit is that you have to less draw mouse from Power8 main button to Start Menu,” developers explained.
The application comes free of charge and can be installed on both 32- and 64-bit versions of Windows 8 and 8.1