SOUND STOPPED WORKING HELP!!!!

[xxshotxx]

Alright so friday night my computer was acting slow so i reinstalled windows did a clean sweep. Well saturday afternoon i was reinstalling drivers and such sound was working and when i turned off my pc and turned it back on there wasnt any sound. I opened the pc up and made sure all wires were connected, they were so i decided to redownload drivers still didnt work well i reinstalled windows AGAIN and to no avail sound is still not working. It isnt muted and i have onboard sound thanks!

 

[xxshotxx]

please help me