Earlier versions of Aliadwdm.sys contain known issues with Windows XP.
Therefore, when upgrading to Windows XP or one of its service packs, look for Aliadwdm.sys in the Txtsetup.sif file. If present, delete it, and then install the built-in driver Ac97ali.sys.
However, if Windows determines that Aliadwdm.sys is a better match than Ac97ali.sys, try to keep Aliadwdm.sys because it is the best driver to use. For example, this might occur if it was a later version than the built-in driver. Because the driver was removed during the beginning of the upgrade, you receive a prompt for the location of the third-party driver Aliadwdm.sys. If you ignore the prompt for the driver, the upgrade completes, and a yellow exclamation mark appears next to the audio device driver in Device Manager.
After the upgrade, you can either update the driver using the ALI driver, or you can remove the driver in Device Manager and scan for new hardware changes so that the built-in driver is installed instead.