I have Realtek chipset soundboard. Everytime an audio source is paused or changed to new source sound gets louder even if master volume scroll stays on same position. If you change volume by yourself sound gets back to normal.

Here i found a youtube video show what i'm trying to say. Please help, it's an issue i have since i upgraded to windows 10.

https://www.youtube.com/watch?v=WTkoUv6XZVY