Repair Audio
Repair Audio diagnoses and fixes the most common Windows audio failures. It restarts the Windows Audio and Windows Audio Endpoint Builder services, reconfigures the default audio endpoint, repairs audio driver registration, resets audio enhancement settings, and clears cached audio configuration. It handles both built-in speakers and external audio devices (USB, Bluetooth, HDMI). If the audio driver is corrupted, it reinstalls it from the Windows driver store. Works on Realtek, Intel HD Audio, NVIDIA HDMI, and generic USB audio devices. Takes about 2 minutes with no restart needed in most cases.
Main Troubleshooting Guide
How to Fix No Audio or Sound →Complete symptoms, causes, and step-by-step solutions
3 min
Estimated Time
low
Risk Level
No
Restart Needed
Yes
Fix All Safe
Fix This Automatically
RescuePC runs "Repair Audio" with one click — no technical knowledge needed.
Common Symptoms
- ⚠No sound from speakers or headphones
- ⚠Audio device not appearing in Sound settings
- ⚠Red X on the volume icon in the taskbar
- ⚠Sound plays from wrong output device
- ⚠Audio crackling, popping, or distortion
- ⚠Windows Audio service failing to start
How to Fix
- 1
Check audio output: Right-click speaker icon > Sound settings > Output device
- 2
Restart Windows Audio service: services.msc > Windows Audio > Restart
- 3
Also restart Windows Audio Endpoint Builder service
- 4
Update audio driver: Device Manager > Sound > Right-click > Update driver
- 5
Uninstall/reinstall audio driver if update doesn't work
- 6
Disable audio enhancements: Sound settings > Device properties > Advanced > Uncheck enhancements
- 7
Or run RescuePC's Repair Audio which restarts audio services, resets configuration, and repairs drivers
What This Repair Actually Runs
Extracted from repair_audio.ps1 — the signed script this repair executes. This is the real work it performs on your PC, not a marketing summary.
msdt /id AudioPlaybackDiagpnputil /scan-devicesWindows services it manages
- Audiosrv (Windows Audio)
- AudioEndpointBuilder (Windows Audio Endpoint Builder)
- MMCSS
Every run writes a timestamped log you can review or attach to a ticket. Safety class and Fix All eligibility are enforced by the signed pack manifest (SOP-76).
Frequently Asked Questions
What does "Repair Audio" do?▼
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Related Troubleshooting Guides
Having this issue? These in-depth guides walk you through the full troubleshooting process:
How to Fix No Audio or Sound
Symptoms, causes, and step-by-step solutions →
How to Fix Headphones Not Working
Symptoms, causes, and step-by-step solutions →
How to Fix Sound Too Quiet on Windows
Symptoms, causes, and step-by-step solutions →
How to Fix System Sounds Not Working
Symptoms, causes, and step-by-step solutions →
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