No sound on my pc

I have no sound at all its like no speakers nothing muted seems to be ok in device manager me dow know ??? can you tell me what to try?

sound from my pc is not coming from yesterday morning when i remove my speakers and connected to my tv it was working properly but when i reconnect it to my pc it is not working. i checked all wires and connections also reinstalled audio driver.i checked if sound is not muted.also when i connect my headphones i cant hear any sound but it shows that music is playing and volume level is high.to check my speakers i again connected it to my tv and it was working properly.please suggest me a solution .i will be thankful to you.

yes