Uninstall the Microsoft UAA Bus driver for Hihg Definition Audio (same place)ħ. Uninstall Realtek from the 'Add or Remove Programs'.Ĥ.ĝisable the Microsoft UAA Bus driver for Hihg Definition Audio (In the Device Manager, System Devices)ĥ. I got ‘install realtek hd audio driver failure …227’ģ. I tried to install the Realtek HD Audio driver for XP taken from here Install Windows XP SP2 (format the disk with XP SP3 in the beginning of installing XP SP2)Ģ. After reading forums and trying things for 8 hours (with breaks) I did the following, which WORKED:ġ. As you may experience it yourself, I had problems installing Realtek High Definition Audio driver. Recently I downgraded my Windows Vista to Windows XP Professional SP3. How I solved Realtek High Definition Audio driver problem.

Step 4 Now your version is sp2.Reinstall the driver.įinally the conflict between SP3 and your Realtek HD audio Step 3 Now you need to change the hex value to 200 and restart your computer, thereby the system version would roll to SP2. If the hex value is 100, the algorism value is 256, this system version is Service Pack 1 (SP1) if hex value is 200, algorism value is 512, this system version is Service Pack 2 (SP2) if hex value is 300, algorism value is 768, this system version is Service Pack 3 (SP3). Step 2 Type 'regedit' to open Registry Editor, under HKEY_LOCAL_MACHINE SYSTEM CurrentControlSet Control Windows, find out the DWORD value CSDVerision. You can troubleshoot this conflict by modifying SP3 to SP2, specific instructions as follows:

This problem would only possibly happen to Realtek High Definition audio users, and Realtek ac97 audio users would never come across such an issue. Try to reinstall drivers several times, but fail. When your computer has a conflict between SP3 and Realtek HD audio driver, right-click My Computer, select Properties, click Hardware tab and click Device Manager, double-click to extent Sound, video and game controllers, you will see there is a black exclamation mark in a yellow circle beside Realtek High Definition Audio.

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