Windows Update Explained

For those who administer or manage WSUS or simply do patch management, here's a documentation from TechNet written by the Windows Update Product Team to better understand updating behavior and what Microsoft is trying to do with Windows Update. While I rely so much on the WindowsUpdate.log file and/or the WSUS reporting feature to troubleshoot patch deployment issues, it's best to understand what is happening under-the-hood to get a better picture