Windows 8 RTM to Go Up to Build 8506

Windows 8 RTM to Go Up to Build 8506

The currently available Release Preview features Build 8400

Windows 8 Release Preview Video Walkthrough Emerges

Windows 8 Release Preview Video Walkthrough Emerges

It is based on the Build 8400 that leaked a few days ago

Windows 8 Release Preview Build 8400 Reportedly Leaks Online

Windows 8 Release Preview Build 8400 Reportedly Leaks Online

The build has already emerged on various p2p websites