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How to Resolve Realtek Audio Driver Setup Failure Problem

Symptoms:

When install an audio driver, computer prompts an error message that Realtek High Definition Audio Driver Setup Failure, a black exclamation mark in a yellow circle is shown beside the Audio Device in the Device Manager, and when attempt to reinstall the driver, Microsoft HD Audio is unable to be unloaded. Try to unload and reinstall patches and next install audio driver as some on-line articles direct but still has this trouble.

In group to fix this hackneyed but stubborn problem, we should be aware that how HD audio works in advance

HD audio drivers include two aspects: one is the bus driver; the other is the function drivers. Bus driver is the fundamental audio function driver which is integrated into the operating system. We are applying the UAA HD audio bus drivers provided by Microsoft in present Windows XP, Windows Server 2003 and Windows 2000 systems. Function drivers comprising audio control panel software palpably are functional drivers which are availed to realize special features; they are commonly supplied by CODEC chip manufacturers.

The conk out is generated like this:

When we set up the Realtek HD audio driver, the system will find out the High Definition chips, and then will self load system’s own bus driver rather than the one in the HD audio diver. So the conflict comes. Therefore in the case of the presence of Windows HD bus driver in system, the malfunction mentioned hereinbefore emerges after we installed Realtek HD audio driver.

Besides, when we reinstall the system, if we set up the audio driver after we finish loading Windows HD bus driver, such kind of problem may also appear.

Solutions:

Step 1 Navigate Safe mode (if not, related driver files would be automatically restored), if the System File Protection application is disabled, you need not to enter Safe mode.

Step 2 Go to X:Windowssystem32drivers and delete all Had*** files like Hdaudbus.sys, Hdaudio.sys.

Step 3 Enter Device Manager. First disable then enable “Microsoft UAA Bus Driver for High Definition Audio”, at this point there will be an exclamation mark in a yellow circle in front of this device. Then right click “Microsoft UAA Bus Driver for High Definition Audio” select delete, so that system’s HD bus driver is unloaded successfully.

Step 4 Restart and return Normal mode, the familiar screen “Found New Hardware Wizard” is back again. Then immediately cancel all steps, set up the compatible and up-to-date Realtek HD Audio Driver. There will not be any conflict at last.

Step 5 Reboot up the system when driver installation is over, the system audio icon turns up then the long-lost sound is on its way back!

How to avoid this problem?

If this issue has not yet happened, to avoid it you can follow below guide at the time you set up HD Audio sound cards.

First of all, make sure no HD bus driver in system, check whether there are Had*** files like Hdaudbus.sys, Hdaudio.sys under X:Windowssystem32Drivers, if there are, delete all of them and set up the audio card.

These are some tips you can follow to resolve and avoid Realtek HD audio card setup failure problem.

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