Ethernet port and sound ports suddenly quit working. Why

The drivers might have been corrupted by something or you might have got a virus run your antivrus program and test for a virus then
control panel admistrive tools,computer management,device manager scroll down network adapters +expand Ethernet driver right click update driver,disable,uninstall or select properties general you can trobleshoot or driver to update,rollback or uninstall
a yellow? means you need to install/update driver right click to install driver
as for the sound
control panel sounds and audio,volume you can adjust the volume or advanced,speakers select appropriate speakers or audio you will find 3 drop down lists make sure you have selected the right speakers or control panel,administrive tools,computer management,device manager scroll to sound,video and game cotrollers could be a yellow question mark? right click to re-install drivers
hope this helps


hope this helps