1. Make sure your installation windows XP
has been updated to service pack 1 or service pack 2 before continuing.
Right-click on “My computer” icon on desktop. Select “Properties\
General. If your system does not include service pack, please update
from Microsoft's official website. Connect to internet and launch
“Internet Explorer”, click “Tools” on the tool bar and select “Windows
2. Make sure that the “Microsoft UAA Bus Driver for High Definition
Audio” exists in “Device manager\ System devices”. Right-click the “My
computer” icon on your desktop. Select “Properties\ Hardware\ Device
Manager. If the “UAA Bus Driver” does not exist, install it from the
download link below to install on your system (for some reason,
Microsoft does not post a download link for this update anywhere on
their site). Launch the sp32646 file you have downloaded from HP's
website (URL below) and reboot computer after the installation.
3. If the “Microsoft UAA Bus Driver for High Definition Audio” is
working properly, there may be an “Audio Device on High Definition
Audio Bus” or "Realtek High Definition Audio" behind “Sound, video and
game controllers” or an “Unknown device” behind “Other devices”. Please
disable any of these devices. You can skip this step if device
mentioned earlier does not exist in “Device Manager”.
4. Disable the “Microsoft UAA Bus Driver for High Definition Audio” under "System Devices".
5. After that, uninstall the “Microsoft UAA Bus Driver for High
Definition Audio" by right-clicking the device and select uninstall.
6. When finish with the above steps, click the “Scan for hardware
changes” button by clicking on the computer icon with magnifying glass
toward the top of the page. When the “Found new hardware wizard” is
displayed, don't click the “Next” button. Instead, cancel the
installation by clicking cancel.
7. You can now install the audio driver from the driver file that you
have downloaded from the internet or
from your driver CD/ DVD.