An all-round update for the Windows Live services is developed at the moment. The recently published new features in Windows Live SkyDrive and Hotmail are only the tip of the iceberg. As Windows 8 sets a large focus on Microsoft’s web services.
When Windows starts, many system services are started too. Some of them are unnecessary for most users or can be started manually as soon as they are really needed. By setting the startup type of those services to Manual instead of Disabled, you make sure that Windows can start them on demand.