To do this, on the Tools menu, point to Setup, point to System, and then click Advanced Security. Since updating to Windows 10 my Outlook automatically opens new window when I click on new message. Expand the appropriate folder. Microsoft Dynamics GP 9.0. Existing messages … Expand Forms. I often have more than one Outlook window open. window.open. Expand the appropriate window. Methods for obtaining such a reference include: window.open (to spawn a new window and then reference it),; window.opener (to reference the window that spawned this one), ; HTMLIFrameElement.contentWindow (to reference an embedded