I have:
HP Envy dv7 notebook
product # B6B75AV
Windows 8 64 bit
Most times when I turn on the computer/bootup there is no sound at all and my iTunes won't play; the volume is turned up. When I reboot, the sound is on again and iTunes plays just fine. I have made sure the volume is not mute and the level is turned up. Any help will be appreciated.