This may seem like a strange question, but are you using the same USB cable to connect the Behringer to both computers?
On my newer Focusrite I learned the cable is part of the equation; not all are equal.

After that I give up .. without a remote session.
Sounds like something weird/obscure is the issue. I'd likely try to get a PGMusic tech to remote in, but that's just me being me. They probably won't be able to actually hear it, but may be able to help narrow down the issue looking at the settings.
Even if your W10 internal card is terrible, the Behringer should bypass this altogether. So if the Behringer is indeed the issue, it may be money/time better spent on a replacement interface than a new computer.
But I'd have someone remote in or stop by and make sure the Behringer is set up/connected correctly first.

You should be able to get a nice clean sound from it. Make sure your headphones/speakers are connected to the Behringer unit when trying it. If you select the Behringer dtiver but still have headphones/speakers connected directly to the computer, you're not hearing the actual Behringer.

I do not work here, but the benefits are still awesome
Make your sound your own!