Here's an activator for Windows 8 Professional Edition. Reportedly, it works on Windows 8 Professional Final version however i don't have a Windows 8 operation system and as a result i did not get to try this out. Meaning, you'll make the final call for yourself whether to try this or not. Remember to read some additional info attached.
Some Description About Windows 8
Windows 8 introduces significant changes to the operating system's platform, primarily focused towards improving its user experience on mobile devices such as tablets to rival other mobile operating systems like Android and Apple's iOS. Windows 8 introduces a new touch-friendly shell and user interface based on Microsoft's "Metro" design language, featuring a new Start screen with a grid of dynamically updating tiles that represent applications. The Start screen replaces the "Start menu" of earlier Windows versions. There is a new app platform with an emphasis on touchscreen input, and the new Windows Store to obtain and/or purchase applications to run on the operating system.
1.Run as administrator
2.Wait for the process and don't do anything.
3.It restarts automatically, Windows is "activated"
Unlocked: Personalization,,Start screen,,Account Picture
Download - Uploaded | Ryushare