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.
