It is possible to install the HP audio driver for the Compaq Presario audio driver on Windows 7.There is no need to search for a Compaq driver and download files from unknown and unreliable sources. The HP driver cannot be installed from the downloaded file as it cannot find the hardware audio device. To install the audio driver, use the update driver option in the device manager of the laptop computer. When prompted, give the location of the downloaded driver file for the audio device driver. The HP driver can be installed on the Compaq Presario audio driver for Windows 7 by following the steps to update the driver.
Here is how to download and install the audio driver for a Compaq Presario 2100: