This is a tutorial explaining how to install Windows 7 Beta Build 7000 (the beta now available from microsoft) on Virtual Box. This video is split up into 3 parts. The installation took about 30 minutes. Q&A: What operating system/program did you make this video on? Screenflow on Mac OSX. Why did you set the operating system to Windows Server 2008? If you don't set it to server 2008, it won't resgister the mouse keys working. Why did you set the ram to 600 mb instead of the suggested 256mb? The first time I tried to make the video, the install told me the minimum ram allowed for the install was I believe 556, so I had to redoo it. How big is the disk image for Windows 7? About 2.5 GB. Where can I find the disk image for Windows 7? Here is the current link from Microsoft: http://download.microsoft.com/download/6/3/3/633118BD-6C3D-45A4-B985-F0FDFFE1B021/EN/7000.0.081212-1400_client_en-us_Ultimate-GB1CULFRE_EN_DVD.iso What version/build is this? This is Windows 7 Ultimate Build 7000. Why didn't you worry about the serial? I don't recall if Microsoft is giving serials for the beta, or if it doesn't need a serial and will exspire in August as I've read on the developers blog. Where can I download virtual box? You can download it at http://www.virutalbox.org/