Use the following procedure to delete a virtual machine
To delete a virtual machine group
In the Groups pane of the tool console, expand the
Virtual Machine Servicing Tool Groups tree node, and then
click the type of virtual machine group node in which you want to
delete a group to display the current list of virtual machine
groups in the results pane of the tool console.
In the results pane of the console, in the list of virtual
machine groups, select the group you want to delete, and then in
the Actions pane, click Delete Group.
When prompted, click Yes to confirm the delete
operation, and then click OK to acknowledge that the
operation has completed.