I have a Compaq Presario 2100 laptop. The audio device was started, but Windows could not start because of a corruption in the registry. I downloaded Registry Smart to scan and repair. I found the driver at hp.com, so I could uninstall and re-install. I even matched the audio identifier code 126.96.36.19917 to make sure I was getting the right driver from another site.
Uninstall went fine. Install is telling me I need a file called caliaud.sys. It is telling me it is on Conexant AMC 3D Environmental Audio Driver Disk. I found a reference to someone else having the same problem in 2005, but nothing else for me to try that I haven't already tried.
Can anyone help, please?