go here
http://support.asus.com/Download.aspx?SLanguage=en&m=Audio&os=30download the file u want to install to your desktop do not install yet disconnect from internet {airplane mode} if u have W10 because during one of these steps
W10 may install an unwanted driver then
go to run type , temp , delete the files from the temp folder some will not delete ignor those then in run type , %temp% , delete those files , some will not delete ignor those. then go to device manager find , sound video game controllers , open by clicking on > find Realtek High Defination Audio click it then right click it uninstall it then install the Realtek Driver u downloaded. I also sent u a PM