Hi was reading a Microsoft article :https://docs.microsoft.com/en-us/sccm/core/clients/manage/collections/use-maintenance-windows
There are some lines which confused me can any one clarify what does it actually mean ?
By default, computer restarts caused by a deployment aren't allowed outside of a maintenance window, but you can override the default. Maintenance windows affect only the time when the deployment program runs; applications configured to download and run locally can download content outside of the window.
When a client computer is a member of a device collection that has a maintenance window, a deployment program runs only if the maximum allowed run time doesn't exceed the duration configured for the window. If the program fails to run, an alert is generated and the deployment is rerun during the next scheduled maintenance window that has available time.
There are other question :
1) If there is any maintenance window start of patching , will it not allow any application/package deployment to run at that time ?Why ?