I just wanted to mention that on my new machine (a Dell XPS 15 core i7-7700 quad core) I have only gotten very rare momentary dropouts in Windows Media Player and the Edge browser. It is as good or better as I have experienced with my previous audio interfaces (a Focusrite Scarlett and an M-Audio Fast Track Pro) on previous machines. I don’t think it is realistic to expect to NEVER get an audio dropout. Every now and then, Windows is going to do something that interrupts the audio stream. In my previous experiences, sometimes, Windows Media Player would just stop and the only way to get it playing again was to close it and restart it. The same thing occasionally happened in internet browsers while watching YouTube videos or streaming audio. Of course, it would be ideal if I never got an audio dropout but I can listen to Media Player and Browse for hours without any dropouts. In Cubase, I have yet to have any sort of dropout that wasn’t clearly due to just having the buffer size set too small. So, for my setup, I would say the ASIO part is pretty solid. The Windows driver part is very good (as good as I have had with other interfaces and computers) but not perfect.
Lastly, I also thought it may be helpful to mention that I actually use the Thunderbolt Dock (Dell TB16) with the UR44 plugged into the dock. I was concerned about how well it would work when I ordered it but I have a second monitor plugged into the dock as well as my Axiom Pro keyboard and it has not been any problem at all. It performs as well as when they are plugged directly into the computer.