Microsoft has just launched the first final RTM version of service pack 1, and that is a very comprehensive upgrade, which is designed for Windows 7 and Windows Server 2008 R2. Service Pack is first and foremost a collection of all previous Windows upgrades for which are almost related to security. But the new upgrades also contains many new improvements in this features like improved stability when combined with audio devices via HDMI and can restore the folders in Windows Explorer after a reboot.