My computer: Compaq Presario SR5710Y Desktop PC (http://support.hp.com/us-en/product/Compaq-Presario-SR5000-Desktop-PC-series/3823953/model/3867472)
Recently my computer has stopped playing audio with no significant signs of why (no new software, power issues, etc.)
The sound tab in the taskbar has a red circled x with the message "No Audio Output Device is installed." Also, my playback devices have disappeared even when I click to "Show Disabled/Disconnected Devices."
In the Device Manager, the Realtek High Definition Audio Device (listed under the Sound, video and game controllers) has a yellow circled x and when I go into its properties it displays the device status as "This device cannot start. (Code 10)"
I have tried to troubleshoot the problem using nearly troubleshooting guide that I could find online. You can still ask, but most likely I have probably done it. However, there are some things I think that are causing the issue that I could not find online about.
In Device Manager, when I "view devices by connection" the Realtek High Definition Audio Device is not connected under the High Definition Audio Controller (a system device) which I believe it should be. I believe this because I also own a similar computer model (a compaq presario sr5410f) and when I view its devices by connection its Realtek High Definition audio device is connected under the audio controller.
What it should somewhat look like (found this picture online):
What mine looks like:
Computer Sound Problem.JPG 88.97KB 0 downloads
Also, here is an old dxdiag file I have that shows I had sound.
DxDiag.txt 47.21KB 2 downloads
My current dxdiag for sound looks like this:
Sound dxdiag.JPG 54.16KB 0 downloads
I really do not want to reinstall windows or return my computer to its original factory configuration, but if no solution comes I guess I will have to see if that will work.
Edited by CharlieN, 03 January 2017 - 07:20 PM.