RtkAudUService64.exe
Also called rtkauduservice64, realtek audio service, realtek hd audio universal service
Realtek HD Audio Universal Service. It is the vendor audio helper. It is not audiodg.exe, which is the Windows audio engine graph.
What you need to know
Realtek audio service, not audiodg.exe (Windows audio graph).
RtkAudUService64.exe is Realtek's HD Audio Universal Service. audiodg.exe is Windows Audio Device Graph Isolation. Ending the Realtek service does not replace the Windows mixer. Ending audiodg mutes every app.
- Safe?
- Yes, with Realtek audio
- Same as audiodg?
- No. audiodg is the Windows graph
- Can I end it?
- Realtek extras can drop
What is RtkAudUService64.exe?
RtkAudUService64.exe is the Realtek HD Audio Universal Service, not audiodg.exe. Realtek ships it with the audio driver. Windows still mixes in audiodg.exe.
What does it do?
It hosts Realtek enhancements, jack detection, and vendor UI hooks. It does not isolate app audio the way audiodg.exe does.
Why is it running?
The PC has a Realtek codec and the Realtek package. A USB headset with its own driver may not need this service. A PC with only NVIDIA HDMI audio may still show it if the Realtek device exists.
Is it safe?
Usually safe when Realtek signed
A Realtek-signed service under DriverStore or Program Files\Realtek is the helper. RtkAudUService64.exe in Temp is not. This is still not audiodg.
A legitimate copy normally runs from:
C:\Windows\System32\DriverStore\FileRepository\realtekservice.inf_amd64_*\RtkAudUService64.exe
- Also seen under Program Files\Realtek\Audio\HDA
- Publisher should be Realtek
- Windows graph is System32\audiodg.exe
Can I end it?
Realtek extras can stop
Ending RtkAudUService64.exe can drop jack sense or the Realtek tray. Windows Audio can keep running in audiodg.exe. Do not end audiodg to stop Realtek.
Can I remove it?
Uninstall the Realtek audio package
Use Device Manager or the PC vendor's audio installer. Do not delete audiodg.exe to remove Realtek.
Should it start with Windows?
The Realtek audio service starts it. It is not a Startup Apps checkbox next to Spotify.
Normal resource behavior
These are contextual labels, not universal averages.
- CPU
- Should be low. A spike is often a bad Realtek build
- Memory
- Small
- Disk
- Low
- Network
- None for local analog jacks
File information
| Executable name | RtkAudUService64.exe |
|---|---|
| Common legitimate path | C:\Windows\System32\DriverStore\FileRepository\realtekservice.inf_amd64_*\RtkAudUService64.exe |
| Publisher | Realtek Semiconductor Corp. |
| Signature expectation | Signed by Realtek Semiconductor Corp. |
Common problems
People mute the PC by ending audiodg
Wrong process. audiodg is the Windows graph. This service is Realtek-only extras.
High CPU after a Windows update
Reinstall the Realtek package from the PC vendor or Realtek. Do not replace audiodg.exe.
Troubleshooting
Diagnose before you change anything destructive.
Device Manager > Sound, video and game controllers
Update or roll back the Realtek device. That is this service's driver. Windows Audio enhancements in audiodg are a different toggle.
Confirm you are not looking at audiodg.exe
Open file location. DriverStore or Program Files\Realtek is this article. System32\audiodg.exe is Windows Audio Device Graph Isolation.
Technical details
Technical details
| Image name | RtkAudUService64.exe |
|---|---|
| Role | Realtek HD Audio Universal Service |
Sources and verification
Reviewed by Feex editorial. Last verified August 2026 Status: Feex Reviewed. How we research.
- Realtek PC audio codecs · HD Audio software includes the Universal Service
- Microsoft Support: Windows sound · Windows mixer is not the Realtek helper
- Foxhole process map · First-party samples on Windows PCs. Not a lab benchmark.
Was this article useful?
A yes or no is enough. Pick a reason if you want, or add a short note.
Thanks. That helps us improve this page.