Undoubtedly Microsoft Windows 8 Developer installation as simplified as any other Microsoft Windows product and the Windows 8 Developer Preview installation do not pose any problem to majority of users. The Windows 8 Developer Preview installation do not need any product key, but when trying to re-install or resetting the operating system many users are prompted to enter Windows 8 Product Key.
The problem is that Microsoft has not provided any Windows 8 Product Key with the operating system, and there is no Windows 8 Product Key available on their official website as well.
The Windows 8 Product Key is available on a forum thread of MSDN (Microsoft Developer Network).
For your convenience we are providing these product keys on our blog itself:
Windows 8 Developer Preview Product Key:
Windows 8 Developer Preview Server Version Product Key:
Note: These product keys have been provided for the Developers preview of Windows 8 client and server OS and will not work with upcoming versions (such as beta and RTM version). It will expire on March 11, 2012, the expiry date of Windows 8 Developer Preview.