I just wanted to post a reminder that the Windows 7 Beta is set to expire on July 1st, 2009. What does that mean? Well it isn’t going to explode, eat your data or lock you out. What is going to happen is that the PC will force you to reboot every two hours. But have no fear there is a way to fix this, simply install the Windows 7 Release Candidate which you can still download.
While an upgrade isn’t supported, and I strongly recommend a clean install, you can find a workaround that will allow you to do an in place upgrade.