Cannot start this hardware.
There was a problem installing this hardware:
C-Media AC97 Audio Device
There is no sound. When you open up Device Manager, there is a yellow exclamation mark on C-Media AC97 Audio Device. When you double click C-Media AC97 Audio Device, under device status, it says:
This device cannot start. (code 10)
Click troubleshoot to start the troubleshooter for this device.
This is a common problem when you have Realtek AC97 chipset. Somehow Windows XP recognize Realtek sound device as C-Media AC97 Audio Device.
Download and install the latest version of Realtek AC97 driver and it should be fine. Here's a screenshot of a working one: