|If your computer is a brand name you should look on the manufacturer's website for drivers. Searching the model usually works. I normally would search for "model downloads"|
If it's a custom built PC, then you should have got a disk with it that has the drivers for the device. If the device is on the motherboard, then the drivers will be on the motherboard CD. If the device is a separate card, then the disk would be separate.
It matters not how straight the gate,
How charged with punishments the scroll,
I am the master of my fate;
I am the captain of my soul.