Trouble with sound not getting any of it.

Okay I'm at a major loss and at wits end here.

I'm running Windows XP, recently virus basically blew my computer so I had to do a System Restore.

So starting over and all I apparently have no sound anymore.

I've done just about everything i've been able to find and not a thing has worked.

It sees my sound card a Realtek AC'97, It apparently knows it's there.

My Sounds and Audio Devices says No Audio Device

I've gotten different errors depending on what I do, the main one i see is about Mixer Devices.

Now the thing being is the Realtek is seen and it has a location.

The Device Manager lists
Audio Codecs
Legacy Audio Drivers
Legacy Video Capture Devices
Media Control Devices
Realtek AC'97
Video Codes

Now the odd thing being is only Realtek has a location.

All the others are unknown but says it's working properly.

I need some help to fix this please.