The new graphics and wireless drivers are installed. New WiDi software loaded. System meets WiDi requirements (4th Gen Core i7, 7260-N Wireless). Actiontec ScreenBeam Pro Wireless Display Receiver updated to latest firmware (which states, "Adds Windows 10 support").
Click Connect in the Action Center, ScreenBeam does not show up. I can connect to the ScreenBeam with my Windows Phone, my Windows tablet (BayTrail Celeron CPU, Realtek WiFi), my Android tablet, and my laptop connected before updating to Windows 10.
Just letting you know, this is not fixed.