The sound in games has become quieter by about 2 times Windows 10. How to fix it?

Question

Audio

In games, the sound became quieter by about 2 times. It was in games, everywhere in other places as it was. Windows 10. I sin on updates .. Mixers are all on an equal footing. The sound gets louder if you turn on "Spatial Sound", but it's just awful.

Answer 1

problem in update KB4515384 : see paragraph "Known issues in this update".

Answer 2

Skype turned off?

Answer 3

In general, the problem can be related to many things.
Try everything .