Problem with 7.1 sound after formatting the PC

I had to format my PC 4 days ago, the problem I have now is that after doing it I feel that my 7.1 when I activate it are not the same, the bass or bass if you could call them I hear them very loud, I found a temporary solution that is al When I open a game I go to the sound settings and try to change the permissions so that the applications do not take control, it is solved since the game has a "small restart" because it suffers a small lag of 5 seconds where it does not It lets me do nothing after a few seconds it works again and the audio is good, when I restart the game the problem persists, can someone help me with that please.