System fan not working and system is very slow

[Aro_immaculate]

When the laptop is switched on its showing up an error saying the SYSTEN FAN is not working and further use of it is not encouraged. And system is very slow. 

[WAWood]

@Aro_immaculate 

I ran into a similar problem a while back on an older HP Media Center PC and after confiming that the case fan WAS working, I went into the BIOS and disabled the notification message -- and the PC worked fine after that.

So, the first thing to do is confirm whether or not the fan is actually running.

With a desktop, you can open the case and SEE if the fan is actually spinning; but with a laptop, all you can do is listen for the sound of the fan spinning.

With a laptop, if you don't hear the fan, I suspect that it actually is NOT running -- and that is a serious issue as your PC will overheat almost immediatly and shut down as a result.

That being the case, you need to get the fan replaced and such repairs can be very difficult and risky to perform, depending on how much stuff has to be removed in order to get to the fan to replace it.

For such repair estimates, you would need to contact an HP Repair or Service Center.
If you live in the U.S., here is a link to the HP Service Repair Centers:
https://www.service-center-locator.com/hp-hewlett-packard/hp-hewlett-packard-service-center.htm
If you live outside the U.S., here is a link to HP Service Centers, by Country/Region: https://support.hp.com/in-en/service-center

Good Luck