Notebook Audio

It appears that the volume starts high after I reboot my laptop but then suddenly lowers after 3-5 seconds.

My Audio Driver Specs:

Driver: Realtek Semiconductor Corp

Driver Date: 9/17/2019

Driver Version: 6.0.8799.1

Digital Signer: Microsoft Windows Hardware Compatibility Publisher

I've tried trouble shooting, uninstalling and installing the local audio drivers, disabled audio enhancements, selected "Do Nothing" in the communications tab of "Sound"...yet the problem still persists.

A user called Banhien told me to do the following:

" Please do a clean install Audio software/driver, this should help.

(a) Download the following driver and save on your computer,
              https://ftp.hp.com/pub/softpaq/sp100001-100500/sp100144.exe
(b) Go to Device Manager, Sound to uninstall sound driver (Realtek) and reboot,
(c) Right click downloaded file and select Run as administrator,
(d) Reboot again. "

However, the problem still persists.

I've tried the previous process several times without success, so I don't know if that may actually matter.

I have noticed that every time "I go to Device Manager, Sound to uninstall sound driver (Realtek), reboot and go to Device Manager again and sound". The driver is installed again, so perhaps this may be the problem

I'd appreciate if anyone out there can help me. 

My laptop has less than 3 months old