As from today –and all over the world- Microsoft Windows 7 (or Seven) finally hits retail stores. For those –unhappy- users regarding Windows Vista, who actually rolled back to Windows XP due to performance issues and system crashes, Microsoft, the world leading company in operative systems, states that Windows 7 is the best Windows ever and this way, Microsoft is hoping its new system will perform as promised and avoid a repeat of the negative publicity associated with Windows Vista.