Sequence: It is very depressing to reinstall the system several times. It is unable to install the sound card. This will find a solution.
Solution to the conflict between RealTek HD Audio audio card driver and system HD bus driver
Let's talk about what HD Audio is. "HD Audio is short for high definition audio (High Fidelity Audio), formerly named Azalia. It is a new generation of audio specifications jointly launched by Intel and Dolby. HD Audio is designed to replace the popular ac'97 audio specification, which has many similarities with ac'97. To some extent, it can be said that it is an enhanced version of ac'97, however, it is not backward compatible with the ac'97 standard. It provides a new connection Bus Based on the ac'97, supporting higher quality audio and more functions. Compared with the current ac'97, HD Audio features high data transmission bandwidth, high audio playback accuracy, support for multi-channel Array microphone audio input, lower CPU usage, and common use of underlying drivers." "HD Audio divides drivers into two layers: bus drivers and function drivers. bus drivers are the most basic audio driver, integrated in the operating system. Currently, HD Audio bus driver is provided by Microsoft in Windows XP, Windows Server 2003, and Windows 2000 systems. It is generally referred to as a high-definition audio driver for general-purpose audio structures (uaa. "Function drivers" are functional drivers that implement special functions, including audio control panel software, which is generally provided by Codec Chip manufacturers ."
That is to say, when WINXP finds that the HD chip will install the bus driver that comes with the system, then if the HD driver in the chip factory also contains the bus driver in addition to the function driver, the conflict will come. For example, if the RealTek HD audio card driver is installed on the Windows HD bus, the message "audio HD Driver Installation failed" is displayed, and the Device Manager sound card displays "Microsoft HD Audio "( the "Win sound card" cannot be uninstalled, audio is not provided), and The kb888111 patch to fix this bug (released on December 11, January) already exists on the machine, in addition, the driver can only be uninstalled once (the server has been uninstalled once before and cannot be uninstalled after being reinstalled), which means that it is impossible to delete the bus driver by deleting the patch; for example, when you reinstall the system, this problem also occurs if the HD bus of windiows is first installed and then the audio card driver is installed.
Solution to the Problem (the normal HD Audio Card Driver cannot be installed due to the installation of the win Sound Card ):
1. Enter security mode
2. Go to X: \ win \ sys32 \ drivers and delete hdaudio. sys and hdaudio. sys (if there are other hda headers, delete them ,);
3. Enter the Device Manager. Disable enabling "Microsoft uaa bus driver for high definition audio", right-click "Microsoft uaa bus driver for high definition audio", and delete, you can delete the HD bus driver of the system,
4. Restart and return to normal mode. Cancel all "new hardware found" Images and install the driver of the RealTek HD sound card.
5. Installation successful, restart,
If you encounter similar HD chips in the future, you can refer to this method.
(From)
Http://hi.baidu.com/jianhonghuang/blog/item/f518bb516a42528c8d5430e6.html
