Typically, When Windows server backup drive is formatted, it is formatted in such a way where it is hidden from explorer (and subsequently ransomware) but can be seen in Drive Management.
This has been the behavior of all the systems I use MS server backup on which are many.
However, I have one problem child windows server 2008 std system that doggedly applies Z: drive letter to the usb backup drive.
Can I turn this off? I have two drives I swap in daily and while I can remove the drive letter it is reapplied as soon as I plug the other drive in.