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check first if the driver for the audio is installed, you have right click on my computer, then choose properties, then device manager and see if the Multimedia Audio Controller doesn't have a question mark on it, if it has you have to download the driver from your laptop manufacturer site. But if it doesn't have the question mark, just go to the control panel, then sound/audio and see if it is muted or disabled
Check Device Manager to for any "unknown devices", your audio device driver might be one of those. Unknown devices usually appears if the device driver (ex. audio driver) is not installed. You can also find an "exclamation point" under "Sound, video and game controllers" if there is conflict on the driver causing no audio to be heard from the unit.
To resolve the issue, you can either use the Drivers installation disc which came with the motherboard or Right-click on the "unknown device" and select "Update driver" button.
For pc users who doesn't know how to check device manager, follow below steps:
Windows XP - Start > Run > type devmgmt.msc on the box then hit enter key. or you can also - Start > Right-click My Computer > Properties > Hardware tab > Device Manager
Windows Vista and 7 - Start > type devmgmt.msc on the search box then hit enter key or - Start > Right-click Computer > System Properties > Device Manager (link at the left pane)
First right click my computer then click properties then hardware then device manager and expand the sound video and game controller and see if the driver is marked with yellow question mark or marked with red X then you will have to reload the drivers and if you dont see any audio drivers then switch of the computer press del and enter bios and enable the audio device
you might have to uninstall then reinstall either the driver or the sound devices control panel sounds and audio,volume,advanced,speakers select appropriate speakers or audio you will find 3 drop down lists make the necessary adjustmentsthere or control panel,administrive tools,computer management,device manager,sound,could be a yellow question mark? right click to re-install drivers or right click select properties to either troubleshoot,uninstall,rollback driver
Unfortunately, power outages affect computers dramatically. You can never tell what or if something is going to be damaged. I have never heard of sound cards being damaged, but it is a possibility. Is your pc still under warranty?
1.) Go to control Panel and findout the sound and audio device application.Click them and you will prompt with application. There is sound and audio tab option . Go through and check that is it working properly.
2) Check the sound driver in device manager.If it is not available then reinstall the sound driver.
3)If still its not working then there may be problem in sound port in your computer motherboard......
you can install the audio driver again from the manufacture cd which is given with your motherboard at the time of purchase if you are using onboard audio. ..
if you are using other sound card then you must disable the onboard audio in the bios option and then you can install the audio driver which is provided by the manufacture of the sound card at the time of the purchase ...
thank you bye any doubts you can reply me i am always here to assist you please rate my soution