Mapped drive missing during installation

If, when working through the installation wizard, you cannot select your mapped network drive this will be caused by Windows elevating the user permissions to allow the installation to work. If the mapped drive isn’t available to select, either the drive mapping hasn’t started for the elevated user or the elevated user doesn’t have that drive mapped to begin with. Clicking the “Browse” button and selecting a different location and then clicking “Browse” again will usually kick-start the drive mapping for the elevated user.

If the elevated user doesn’t have the network drive mapped you will need to use the NET USE command.