We have a client with a requirment to have all Windows updates thoroughly tested before deployment. The problem that arises is that it is a cumbersome task to go through each Security update, etc. Is there a site devoted to Windows Updates where issues are posted as they arise? What is the most efficient way to test Windows updates and patches? The client in question is a life critical organization where they can only afford 2 hours of downtime a month so cannot have their systems down longer than the patches take to install.