Hi, just posting a solution that helped me.
I have an MSI laptop and i would get a BUZZING sound from the speakers all the time when plugged in. Apparently it's the processor that causes it.
Go to Power options and turn down MINIMUM processor speed in the advanced settings for your power plan down to 95% when plugged in. Taking this down from 100% made my laptop quiet and only buzzing when cpu is in use.
I have an MSI laptop and i would get a BUZZING sound from the speakers all the time when plugged in. Apparently it's the processor that causes it.
Go to Power options and turn down MINIMUM processor speed in the advanced settings for your power plan down to 95% when plugged in. Taking this down from 100% made my laptop quiet and only buzzing when cpu is in use.