The following are some of the tutorials provided by Microsoft

Getting Started With Windows 7 Video Tutorials
http://windows.microsoft.com/en-US/windows7/help/getting-started

Windows Live Movie Maker Video Tutorials (5 links to videos under Movie Maker Tips)
http://explore.live.com/windows-live-movie-maker-import-photos-videos-using

Getting Started With Office 2010 Tutorial Videos
http://office.microsoft.com/en-us/getting-started-with-office-2010-FX101822272.aspx

Office 2010 Training Courses
http://office.microsoft.com/en-us/training-FX101782702.aspx