Inspiron 15 5577 audio driver issue

I had no problems with this until today. For some reason when I opened my laptop today, my audio was not working. Over my audio icon in the taskbar there is a red cross and if I hover over it, it says "No Audio Output Device is installed". I checked device manager and found the issue. Under sound, video and games the Realtek audio driver had disappeared. I tried to reinstall them online and restart my laptop however they still would not show up. I tried to install legacy content through device manager however the realtek drivers then had a yellow exclamation mark next to them and would not work. Please help!