Sound/volume &nero not work properly

Conexant CX20549-12 High Definition Audio driver:

ftp://ftp.hp.com/pub/softpaq/sp36001-36500/sp36090.exe

Note: Please copy the entire link starting from "ftp" to "exe" and paste
it in the address

bar of the browser in your computer and press enter.

1. Click on Start and select Run. Now type devmgmt.msc and press enter.
2. Right click on "Audio device on High Definition Audio Bus" and click
Update driver.
3. Select "Install from a list or specific location"
4. Click Next. Then select "Don't search, I will choose the driver to
install"
5. Click Next and then select "Sound, video and game controller" from the
list.
6. Click Next and then click Have Disk.
7. Click Browse C:\swsetup\sp36090 folder and select the .inf (wis30b2a)
file and click open and Continue with the onscreen instructions.

Similarly install Modem Drivers:

Conexant CX20548 Modem Driver for Microsoft Windows XP

ftp://ftp.hp.com/pub/softpaq/sp36001-36500/sp36089.exe

1.Right click on "Modem device on High Definition Audio Bus" and click
Update driver.
2. Select "Install from a list or specific location"
3. Click Next. Then select "Don't search, I will choose the driver to
install"
4. Click Next and then select "Modem" from the list.
5. Click Next and then click Have Disk.
6. Click Browse C:\swsetup\sp33890 folder and select the .inf (wis30b2b)
file and click open