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#1
Suddenly no sound. "Failed to play test sound" Is this unsolvable?
A few days ago we had a power outage. I don't have an UPS on my Win 7 64 bit Professional PC Dell Optiplex 780. When it powered up again I found I had no sound.
This is what my onboard sound looks like in device manager:
Is it odd to have that many devices?
Here are the things I've tried:
- Went to Control Panel->Sound->Speakers->Properties. Everything says working fine. Turned on disable all enhancements. No sound. Went to advance. Changed format to DVD. Pressed test and received the "Failed to play test sound"
- Went to services and restarted Windows Audio. No sound.
- Ran 'sfc /scannow' from Admin command prompt. Said it found some problems and fixed them. Needed to reboot. Rebooted. No sound. Here's my CBS log file from this try (Dropbox - CBS.log)
- Run virus/malware scan using AVGFree and Malware Bytes. No threats found. No sound.
- Uninstall sound drivers, reboot and reinstalled them using the drivers from Dell's website for this model. Still no sound.
- Booted Win 7 install disc. Chose 'Repair PC'. Windows said it found problems but couldn't fix it.
- Ran chkdsk with the fix option. Found some files and repaired them. No sound.
- Windows update . No sound.
- Bought a cheap USB sound dongle. Installed drivers. No sound. Went into Control Panel->Sound->Speakers->Properties and got "Failed to play test sound" for the new device. You've got to be kidding me!!
- Ran
but get a error code 87 saying that restorehealth is not recognized in this contextCode:dism /online /cleanup-image /restorehealth
I'm not sure where to go from here. I do not have restore points to go back to. Does anyone have any ideas on how to fix this? My family would be most grateful for your help!
Last edited by dinki; 17 Jan 2019 at 09:55. Reason: more detail