I had to reinstall windows lost all audio put in motherboard cd now only have,sub+2speakers working+no audio test any help as I'm still learning how to drive this PC thanks

You need to find the correct drivers for your sound card. They should have come with the PC or you can get them from the manufacturer's web site.

Do you have any idea what sound card is in your PC? Any disks that were supplied with the CD?

I guess the first thing to ask is where do you plug your sub/speakers into on your PC. Is it near where the keyboard, mouse, USB etc. gets plugged in (motherboard) or in a separate slot near the bottom of your PC case (PCI card).

Many thanks ,for some amazing reason it now works & I haven't done anything.:;)