Sound driver for Acer Aspire 5315

[CLONEOPS]

I can not install a sound driver for my pc "Acer Aspire 5315" google already enough to be angry because of the damn driver and nothing if someone can help me, I would greatly.
I was the site of acer and only found in Windows Vista on the same tried and gave nothing.

Motherboard: Acer Acadia (PC Wizard)
Motherboard: Acer Aspire 5315 (Everest)
OS: Windows XP Professional SP2
Sound card: Audio PCI / PnP (Everest)
Sound card: 82801H (ICH8 Family) HD Audio Controller (PC Wizard)

[Una]

First, install the hotfix KB888111.

Restart.

Install the Realtek HD Audio Driver.

[CLONEOPS]

Downloaded and uncompress and installed the hotfix en folder, restart the PC and then installed the Realtek HDA and came back to restart.

Got the following result: Device Manager shows the High Definition Audio with an exclamation point, and the properties of the device the following message appears: "Windows can not load the device driver for this hardware. The driver may be damaged or may no. (Code 39). "