added information for shutdown machines

Author: pruphil

articles/virtual-machines/maintenance-configurations.md

@@ -58,6 +58,10 @@ This scope is integrated with [update management center](../update-center/overvi
 
 To learn more about this topic, checkout [update management center and scheduled patching](../update-center/scheduled-patching.md)
 
+## Shut Down Machines
+
+We are unable to apply maintenance updates to any shut down machines. You will need to ensure that your machine is turned on at least 15 minutes before a scheduled update or your update may not be applied. If your machine is in a shutdown state at the time of your scheduled update, it may appear that the maintenance configuration has been disassociated on the Azure portal and this is only a display issue that the team is currently working to fix it. The maintenance configuration has not been completely disassociated and you can check it via CLI using [check configuration](maintenance-configurations-cli.md##Check-configuration).
+
 ## Management options
 
 You can create and manage maintenance configurations using any of the following options: