$4.$ Deselect the default security group and select a security group created by a launch wizard. Launch$-$wizard security groups are created when you create a new VM$.$ You've probably deleted the relevant VMs$,$ but the security groups are still present unless you've been deleting these along the way. The traffic that is allowed in a launch$-$wizard security group is determined by the permission settings you configured on that VM$,$ such as allowing SSH or RDP for remoting into the VM$.$ What inbound traffic type is allowed for this launch$-$wizard security group? Based on this information, what OS do you think that VM had $($or has, if it still exists$)?$