I have a PowerDVD 16 Ultimate, installed on a Windows 10 Enterprise x64 system. I have a weird problem with the multimedia keys (Play, Stop, Fwd, Back, etc.). When PowerDVD has focus, they work as intended; however, when PowerDVD does not have focus (t.ex. if working on the desktop in Windows), the multimedia keys don't work at all. I have tried an endless bunch of advise found around the web - setting default apps, checking Windows Services etc. - to no avail.
I have a clean install of Windows 10 Enterprise x64 - installed from scratch. Previously I had Windows 7 installed on the system, and there were no problems at all.

I have tried out with 2 different keyboards; previously I had a Logitech G110 keyboard, and now I have a Corsair K95 RGB keyboard. The issue is the same for both.

It goes without saying that I've ensured that all drivers are the latest, the greatest, etc. - still the same issue.

I have also tried this with other media players (WMP, VLC, Quicktime, etc.).

Does anyone know how this can be solved? A solution will be greatly appreciated.

Thank you in advance.

Best regards.