Why does my fan sound like gears grinding

[ShawnTerrell]

Good day and thank you in advance for you response. I have an HP Notebook 15-bs078nr. Purchased in December 2018. I had absolutely no problems until 6 months ago. The fan started clicking and grinding lightly and then spinning out of control making a very loud sound in the process. I replaced the fan 2 months ago and here we are again making grinding noises particularly at low speeds. When the unit begins to heat up and the fan accelerates all sounds fine. I have reduced the fan speed from 100% to 40 percent but this is not resolving the issues. I also have a laptop cooling fan which I purchased to assist the fan which was replaced. Can someone tell me what may be going on. Has anyone else had this experience with the model?

Shawn

[banhien]

@ShawnTerrell 

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/sp101001-101500/sp101041.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.

Regards.

[ShawnTerrell]

Thank you for your response. I attempted to install the driver however, I get the following message;

The driver is not supported on this OS version (10.0.18362).

[ShawnTerrell]

I uninstalled my audio drivers. Downloaded new audio drivers from HP website performed clean install of new audio drivers. Performed a  system reboot. This still did not resolve my issue.