This might be a good reason (amongst the many other good reasons) not to downgrade to Windows 10.
http://answers.microsoft.com/en-us/office/forum/office_2016-visio/ms-visio-just-showing-white-screen-on-windows-10/4b8a6ed5-2716-4869-8d47-f53b345480e5 (http://answers.microsoft.com/en-us/office/forum/office_2016-visio/ms-visio-just-showing-white-screen-on-windows-10/4b8a6ed5-2716-4869-8d47-f53b345480e5)
sounds similar to this one: http://visguy.com/vgforum/index.php?topic=6794.msg28378;topicseen#msg28378