|It's not possible to "delete sound" - do you mean you've deleted a sound driver or altered your specific sound settings? Make sure you haven't accidentally muted the output. That'll prevent sound even when you turn your volume to full blast!|
I would try running the built in Windows diagnostic tool to make sure that it's not something easily fixable. If you've already tried that, considering installing new drivers from the manufacturer's website for your sound card device. You can use programs to match your required drivers automatically if that's easier.