Begining June 1, 2010, Windows 7 RC will act in the same manner as “non-genuine” copy of Windows 7. Essentially, Microsoft willn’t differentiate in any way between Windows 7 RC and a pirated version of the platform. Here’s the experience that users will come across if they insist on running Windows 7 RC after June 1: “Windows starts to a black desktop. Windows 7 RC users are presented with a Windows Activation screen. The screen states that the Windows that you are running is not genuine. Computers that are running Windows 7 RC restart every two hours,” Microsoft revealed in KB971767. In addition to black desktop, “This copy of Windows isn’t genuine” messages, and constant reboots, Windows 7 RC users won’t be able to access any optional updates or downloads that’ve genuine Windows validation as a prerequisite. The fact of the matter is that customers still running Windows 7 RC are stretching their luck as it’s, and should consider either upgrading to RTM version, released six months ago to day, or revert back to their previous operating system.