go to control panel>system>hardware>device manger then locate your sound card right click it hit properties then update drivers, or you can go to the manufacturer of your sound card/device and download the latest drivers. if there is a problem with your sound card it will show up with a ! next to it in the device manager.
hmm nah I've right click everything under sounds and updated them but there's no updates I need. I might just have to restart my computer but I dont want to do that right now because it takes 15 minutes to boot up ..... any other methods?