I've upgraded to Windows 7 and now have no sound. I have a Dell Inspiron 1420

At one point, I had sound through headphones, but now I have no sound at all (after downloading the latest driver from Dell)

Uninstall the driver, reboot the system. The attempt to install the same driver for Windows Vista using Windows troubleshooting. Make a right click on the file executable/installer driver-> properties and select the Compatibility tab. Click on the box to check run this program in compatibility mode for option and select Windows Vista from the drop-down list. then try to install the device driver using run as administrator.

Resources:

If your computer has problems play a sound, try using the Audio playback problems resolution to solve the problem. For measures and additional information, see o ink below.

Open the troubleshooting of Audio playback

http://Windows.Microsoft.com/en-us/Windows7/open-the-playing-audio-troubleshooterOpen

http://www.Microsoft.com/Windows/compatibility/Windows-7/en-us/default.aspx?type=hardware

http://Windows.Microsoft.com/en-us/Windows7/tips-for-fixing-common-sound-problems

Tags: Windows

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