Cooling fan

[pzst57]

Cooling fan makes terrible spinning noise. When I restart the noise mainly disappear. 

[Echo_Lake]

@pzst57

Thank you for posting on the HP Support Community.
 

Don't worry as I'll be glad to help, however, to provide an accurate resolution, I need a few more details:

• Did this happen after a recent window or software update?
• Have you made any hardware/software changes?
• Have you tried any troubleshooting steps?

While you respond to that, let's try these steps: 

Hard Reset: Follow steps from the link: https://hp.care/2GnkMa8. (Refer to the removable and sealed battery)
BIOS default:(do not skip any troubleshooting steps even if you feel steps are repeating ) 

1. Turn off the computer and wait five seconds.
2. Press the Power button to start the computer and repeatedly press the F10 key to enter the BIOS setup menu.
3. On the BIOS Setup screen, press F9 to select and load the BIOS Setup Default settings.
4. Press F10 to Save and    Exit.
5. Use the arrow keys to select Yes, then press Enter when asked Exit Saving Changes?
6. Follow the prompts to restart your computer. 

Hope this helps! Keep me posted for further assistance.
Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.

[pzst57]

Thank You for Your answer. The problem appeared 3 or 4 months ago, not after an upgrad or new windows version. I never made any software/hardware changes. I screw off the bottom of the laptop, but I don't saw any trouble inside, so I screwed back.

I have made the steps, You wrote in Your suggestion, but the noise of the fan at the first start stayed. After the second start. disappeared.

Best regards

Zsolt Tamás Pethes

[Echo_Lake]

@pzst57

Thank you for posting back. 

Let's run BIOS Update: Follow steps from the link: https://support.hp.com/in-en/document/c00042629
 

Hope this helps! Keep me posted for further assistance.
Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.