In case after many mind storming efforts, the above-mentioned troubleshooting steps also did not work, then try performing the following for solution to the problem.
Remove and re-install the sound driver – go to device manager > sound, video, and game controllers. Then select your sound driver and right click on it. Now click on uninstall and delete the driver. Restart your device and go to identify Acer device. Type in your Acer model number and select your product. Download and install the latest audio driver. After the completion of installation, play an audio or video to check the working of sound if Acer sound not working then contact Acer support team.
If you still encounter difficulty in making your laptop sound work, then you surely need expert help. And for that, you must connect to Acer customer care phone number. the team of certified and trained technicians will resolve the issue at least minimum time.
