Been meaning to try out Windows 7 for free before taking the plunge on a final retail copy? Then you might want to get your act together, as today is the last day that you'll be able to download the Windows 7 Release Candidate direct from Microsoft itself. If you can spare a few minutes, however, we might suggest first checking out our Windows 7 install guide to get a taste of what you're in for, and, of course, our full Windows 7 review, which is quite possibly the next best thing to actually using it.