Try these suggestions and post back with the results. ( Please make sure you enter the correct Operating System meaning, Windows™ 7 32 Bit or 64 Bit.) If the problem persists then you will need to go to the Acer® website and download and install the Audio Driver again. Once the laptop reboots, you will receive a notice that Windows™ has 'Found New Hardware' allow Windows™ to reinstall the audio controller. If there are no alerts, right click the audio controller again, and > Uninstall > OK > reboot the laptop. Go to Reducing Heat Inside the Computer to Prevent Overheating for more information. If the noise stopped, the problem might not be a fan, but excessive heat inside the computer. If the noise does not stop, continue to the next step. If there are, Right click the one with the alert > Update Driver software.Īllow Windows™ to search for and update the Driver when finished, reboot the laptop. Reconnect the power cable, turn on the computer, and then wait five to ten minutes. Right the Computer Desktop Icon > Properties > in the Left Pane >Ĭlick Device Manager > View > Show hidden Devices > scroll down to Sound video and game controllers > click the arrow, this will show a list of audio controllers are there any Red X's or yellow ! marks? If it is still under warranty, I'd be taking it back to where you got it from or contact Acer™ Customer Support.

Why is my laptop so quiet