Thank you for your message.
Such issues might be occurring because admin$
(admin share) is not allowed on the remote machine or you don't have access to it.
In addition, such issues might also be caused by the fact that the disc Z is mapped
on the Viewer computer and, therefore, is not available and cannot be used by the Remote Install Tool
. In order to avoid this kind of issues please make sure that the Z drive/letter on your Viewer machine is empty and available since Remote Utilities temporarily uses the Z drive for the installation/upgrade process via the Remote Install Tool.
Hope that helps.