I have 5 computers setup exactly the same. They are all running HP Envy curved all-in-ones, running windows 10 professional. They are all members of a domain and everyone logged in is a user and not administrator.
On 4 of the machines when I need administrative access, I get the UAC dialog and I enter my credentials (administrator on the domain) and I can finish my task as admin. On one machine only when the UAC dialog shows up I get a message from TV something about waiting for user permissions or similar and I can't enter my information. If I have the remote user enter the information for me the program will run (ie: run regedit as admin) but I can't contol the program, I can see what the remote user does with it but I cant control it.
What's going on with this one machine when the other 4 work just fine?