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I am trying to find a good update management solution for my environment. The environment is over 95% virtualized, and I am hoping to find a solution that will "push" updates to hosts and guest vms in a controlled fashion. My thought process is this: if Update Manager can do guest OS updates (can it?) then I can use PowerShell to script pushing updates to all of my vms (i can build in dependencies this way; aka, server A must install updates, and power back on completely before server B gets its updates). My questions are as follows: Can Update Manager do guest OS updates? if yes, then where can I find a detailed PowerShell guide for Update Manager that covers updating both guests and hosts?