I faced the sound problem yesterday and try to install driver from Dell ' web site but dont help .
Then i found this topic in this morning and try to uninstall driver .
Just right after uninstall all sound driver and restart my labtop speaker is back ,
Look like labtop is find some good driver by itself
I have Windows 10 pro software. want to install it on Dell Latitude E6420 and Dell website is saying 6420 is not tested for win10.
What should I do here. why E6420 is not tested when every other model is tested in this category.
"Dell is not testing or developing Windows 10 drivers for this product. If you choose to upgrade, some features, applications, and connected devices may not work as expected."
My audio quit working on my Dell model E6420 when I upgraded to Windows 10. To avoid this, I suggest it may be best to install the latest BIOS and Windows audio driver for the E6420 before upgrading to Windows 10. Uninstalling the audio driver, rebooting, and letting the system reinstall a driver did not work. Attempting to install a driver for a Dell E6430 did not work. I finally solved the problem by installing the latest available version of the BIOS for the E6420, and later installing the latest Windows audio driver for my E6420, even though it may not have been written specifically for Windows 10. I obtained the BIOS upgrade and the audio upgrade from www.dell.com/.../Products using my service tag number code and the "Find it myself" option. However, I had some "blue screen" errors installing that latest audio driver while using Windows 10, where the computer froze, the power had to be disconnected, and the battery removed and then reinstalled, the power reconnected, and then the computer rebooted. However, after rebooting and going through a semi-automatic driver repair process the driver and the audio then started working. As mentioned, I suggest it may be best to install the latest BIOS and Windows audio driver for the E6420 before upgrading to Windows 10. Although I have not tested this, because I only have one E6420, this nonetheless may avoid the problems.
Had the problem of my E6420 speakers not working after Windows 10 upgrade and using Skype.
Solved my issue by going to Control Panel > Sound> Manage Audio Devices > right click Speakers/Headphones > Properties > Advanced > under Exclusive Mode deselected 'Give exclusive mode application priority'.
Hope this helps.
I installed win 10 on this computer before I found out Dell was not testing it for system. Worked great until the Aug 9th updates came out and apparently they did something to the drivers, as I had to install Linux in order to use the wireless connection, ethernet down in both systems.
Maybe there is a wireless card Dell can recommend for use in the 6420 that would be compatible with win 10 and the 6420. I would like to keep my 6420 for a backup as I have a new laptop now.