after install this driver it work
found this here....but too complicated
Welcome to Microsoft Windows Forum.
I will need some more information to assist you better.
a) Are you facing this problem immediately after installing Windows 7?
b) Is the problem with both the internal and external speakers?
c) Have you checked in notification area if the mute button is turned on?
a) Are you facing this problem immediately after installing Windows 7?
b) Is the problem with both the internal and external speakers?
c) Have you checked in notification area if the mute button is turned on?
Note
Some laptops have an external volume control on the outside of the case. If you're using a laptop, check the external volume control to make sure it's not turned all the way down.
Some laptops have an external volume control on the outside of the case. If you're using a laptop, check the external volume control to make sure it's not turned all the way down.
You may follow the steps mentioned below:
Step 1: Steps to update the driver:
1) Click Start, type devmgmt.msc and press enter.
2) Expand sound card and right click on the sub item and click update driver.
For more information on updating a driver for the hardware, you may visit the link mentioned below:
Update a driver for hardware that isn't working properly
http://windows.microsoft.com/en-us/windows7/Update-a-driver-for-hardware-that-isnt-working-properly
http://windows.microsoft.com/en-us/windows7/Update-a-driver-for-hardware-that-isnt-working-properly
Step 2: If this fails then try to reinstall the sound card driver
1) Click Start, type devmgmt.msc and press enter.
2) Expand sound card driver and right click on the sub item and click uninstall.
3) Restart the computer.
4) Visit the manufacturer website to download the latest driver for sound card.
5) Install the driver and restart the computer for the changes to take effect.
For more information on fixing sound problems, you may visit the link mentioned below:
Tips for fixing common sound problems
http://windows.microsoft.com/en-us/windows7/Tips-for-fixing-common-sound-problems
http://windows.microsoft.com/en-us/windows7/Tips-for-fixing-common-sound-problems
If the above mentioned steps doesn’t help, I suggest you to perform system restore.
You may follow the steps mentioned below:
1) Open System Restore by clicking the Start button.
2) In the search box, type System Restore, and then, in the list of results, click System Restore.
3) If you're prompted for an administrator password or confirmation, type the password or provide confirmation.
You may follow the steps mentioned below:
1) Open System Restore by clicking the Start button.
2) In the search box, type System Restore, and then, in the list of results, click System Restore.
3) If you're prompted for an administrator password or confirmation, type the password or provide confirmation.
For more information on system on system restore, you may visit the link mentioned below:
http://windows.microsoft.com/en-US/windows7/products/features/system-restore
http://windows.microsoft.com/en-US/windows7/products/features/system-restore
Hope this information is useful.
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