To download and install a Behringer ASIO driver for your Behringer audio interface, start by going here in your browser: https://www.behringer.com/en/products/0805-AAR?tab=downloads. You will see the Behringer UMC202HD downloads page (pictured below). (Note that the UMC204HD uses this same ASIO driver, as do all UMC audio interfaces from Behringer.)
Scroll down the page until you see the Drivers section of the page, and click the Windows download button (pictured below with arrow).
A compressed zip folder is downloaded through the browser to your computer. Double click this downloaded folder to open it on your desktop. Then double click the file inside the folder, which is the driver installer app. Follow the on-screen instructions to install the driver on your computer.
When finished, we advise you restart your computer, and then you'll be ready to set up your audio interface with the JamKazam app.