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The OptiPlex 755 is an energy-efficient desktop computer designed for businesses. It was released in mid 2007.

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Why not working in sound system of my computer?

My computer is shown the sentence ,This version of Audio Esp is not intended not for this operating system.I am not hear any sound.

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What OS are you using, Win7, Win8.1, Win10?


I am using Win7.


I have a Dell optiplex 755 that has been upgraded to windows 10. There is no sound. I checked and everything is updated please help.


Hii @deuce77 ,

Try clicking on the link in the Chosen Solution below, selecting the Win 10 OS then scrolling down, locating the audio drivers, downloading to your PC and installing them via the Device Manager driver update option.

If still no good try uninstalling the audio controller (in Device manager) and restarting the PC and see if Windows 'finds and installs' new hardware.


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Check to see if there are any red crosses or yellow exclamation marks against your audio device in Device Manager.

To check go to

Start > Control Panel > Device Manager > Sound, Video and Game Controllers. click on + to expand.


Start > Control Panel > Hardware and Sound > Device Manager > Sound, Video and Game Controllers , click on + to expand.

Your audio device should be listed here. It should say Sound Max Integrated Digital HD Audio

If it has a red cross next to it, right click on it and the click enable. Then see if your audio works.

If it has a yellow exclamation mark next to it, right click on it, click on properties In the General tab there is a status box which probably says that the device is not working properly. Click on the Driver tab, click on Update Driver, click on Browse my computer for driver software.

Before you proceed you need to download the Win7 audio drivers from this link. Make sure you select the correct OS

Once you have downloaded the drivers (only the Audio drivers and remember where you have downloaded them to) go back to Device Manager and proceed with the driver update by browsing to where you you have saved them and then following the prompts.

After the driver has been installed there should be no crosses or marks in Device manager and hopefully your sound will work.

If there is no listing under Sound, Video and Game Controllers check under Other Devices if it is there apply the driver updates the same way and it will be put in the correct place.

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Thank jayeff.


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balkim zal eeuwig dankbaar zijn.

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