I accidentally cancelled a sound update HELP!!!!!

Hello, I have a very big problem so one day i was looking at my updates and i saw a update for my sound from 2015 and i was like wow i should install it but it froze and i was like whatever but after a few minutes a pop up with a title like Windows C++ 2005 sound or whatever came and i was like wow how this get here and i CANCELED IT......WORST.MISTAKE.EVER..... and now my sound kinda works but for some youtube videos it sounds like when you get on a channel with no reception............so help!!!!!!!