The best thing to happen to Microsoft's public relations in years, Windows 7 is more than just spin. The public testing process, involving one limited-availability beta and one release candidate, too, constitutes what some are calling the largest shareware trial period ever. Although the look of Windows 7 may seem to be nothing more than some polish applied liberally to the Vista Aero theme, make no mistake: this is a full replacement operating system, and more than just "Vista done right".

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Microsoft Windows 7 (Professional)