Morning all. I'm hoping someone out there will be able to assist me, first a little back story. I recently bought a Dell Latitude E5520 laptop running Windows 7, 64-Bit, 4GB RAM, 500GB HDD.
I received the laptop on Wednesday last week. The first thing I did was to update Windows and all the Dell Software. The laptop was working well without any problems. However earlier this week, when I tried to watch a video on YouTube, only to find there was no sound. Upon further investigation I found the speaker icon is shown with a Red "X", and when I hover the mouse over it, a message of "No Audio Output Device Installed" would appear. This has only happened within the last few days because I watched some football on the laptop at the weekend using the internal speakers for match commentary. As far as I'm aware there's been no software installed that would have lead to this problem.
Working with computers a lot, I know my way around, so I then went to Device Manager to look for any faults. I looked under the "Sound, Video and Game Controllers" and found only Bluetooth Audio was listed, which I thought was a little strange.However under the "System Devices" section I found that the HD Multimedia Audio Device had a yellow exclamation mark over it. Selecting it revealed it had failed to start (Code 10). Suspecting this was the root of my problem, I tried to Update the Driver. After a while of checking online, the message received back informed me that the installed driver was up to date, therefore it couldn't be updated, not what I wanted to hear!
One of the things I've tried was to go into the "Services" section, then in the "Extended" tab scrolled down to "Windows Audio". From here I found that the Audio Service had started, and was set to start automatically. I've then stopped the service, and restarted it, again hoping to cure the problem, but again no change.
I've asked Google for other solutions, most of which amounts to reinstalling the sound driver, which I've tried but nothing seems to work. As a last resort I ran the Diagnostic tool from the Bios Menu, and everything passes correctly, yet I still have no sound from the laptop speakers.
Can anyone advise anything else to try, before I need to return the laptop to Dell?
Many Thanks in advance