Hello i got a problem when i got my work notebook i can vol up and vol down but still got no sound from build in speaker didnt check headphones then. Now after trying many....solution i got massage "No Audio Output Device is Installed" and can even vol up or vol down. No in build speaker sound or headphones sound right now i end with latest IDT driver that make a reaction now when i plug headphones i got prompt of IDT api so it see plug in but still no sound in any chanel plz for help. Main problem is this i CANT use recovery or reinstall windows becouse this is work notebook with preinstaled software that i cant get later after reinstall
Windows 7 x64
Sory for my bad english.