thnx i uninstalled an input audio driver and its fixed! why has it have 2 audio drivers since it only has an integrated audio card! it was ok this morning! how did this happen?
Normally if your laptop has an HDMI port which you can transfer sound and video at the same time the PC thinks of it as a sound device as well that uses a driver. But uninstalling it wouldn't hurt but sometimes it does specially if it's needed by the laptop.