If you are getting the “Can not connect to RPC service” error when opening the Realtek Audio Console app on Windows, this tutorial is for you. It shows you the simple steps to fix the error and make the Realtek Audio Console app work again normally. Let’s get started.

Fix ‘Can not connect to RPC service’ Error in the Realtek Audio Console
- Right-click the taskbar.
- Select “Task Manager“.
- Go to the “Startup apps” tab.
- Select the “RtkAudUService64” or “Realtek HD Audio Universal Service” entry.
- Click “Enable” at the top.
- Close the Task Manager.
- Restart your computer.
- You’ve fixed the ‘Can not connect to RPC service’ error.
Detailed Steps (With Screenshots)
First, right-click the taskbar and select the “Task Manager” option. Alternatively, press the “Ctrl + Shift + Esc” to open the Task Manager app.

Once it opens, go to the “Startup apps” tab from the left sidebar. On Windows, the same tab will be at the top. Here, find and select the “RtkAudUService64” or “Realtek HD Audio Universal Service” entry.
Next, select it and click the “Enable” option at the top. On Windows 10, the option will be at the bottom.
Important note: If “RtkAudUService64” or “Realtek HD Audio Universal Service” are missing from the task manager’s startup apps list, follow the sub-section below to add them. If you don’t do it, the error won’t be fixed.

Finally, close the task manager app and restart your system. Restarting is necessary to make the service start with Windows. To restart, right-click the “Windows” key on the taskbar and select “Shut down or sign out” > “Restart“.
After restarting, open the Realtek Audio Console app from the Start menu and it will start without errors.

Good to know: How to reset sound settings in Windows 11
Add RtkAudUService64 (Realtek HD Audio Universal Service) to Windows Startup
If “RtkAudUService64” or “Realtek HD Audio Universal Service” are missing from the task manager’s startup apps list, you can manually add them via the Registry Editor. It’s pretty easy to do.
Important note: Administrator rights are required to create or modify registry entries. Before proceeding, back up the registry to be safe.
- Press the Windows key to open the Start menu.
- Search and open “Registry Editor“.
- Go to the following folder in the Registry Editor.
Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
- Right-click on the “Run” folder.
- Select “New” > “String Value“.
- Set the name of the new value as “RtkAudUService“.
- Right-click on the new value and select “Modify“.
- Enter the below path (including quotes) in the “Value Data” field.
"C:\WINDOWS\System32\DriverStore\FileRepository\realtekservice.inf_amd64_2c6939fa3ca49312\RtkAudUService64.exe" -background
- Click “OK” to save the change.
- Close the Registry Editor and restart your system.
After restarting, follow the first section and ensure the “RtkAudUService64” or “Realtek HD Audio Universal Service” item is enabled.

Troubleshooting Steps
Finding the RtkAudUService64.exe file’s location
Depending on the Realtek version and installation process, there is a chance that the location of RtkAudUService64.exe might be different. In that case, open the File Explorer, go to the C drive, and enter “RtkAudUService64.exe” in the search bar. Once the file is found, right-click on it and select “Copy as path” to copy the file path. Next, substitute the old path in Step 8 with this new path.

Missing RtkAudUService64.exe file
If your system doesn’t have a RtkAudUService64.exe file, you have to reinstall the Realtek audio driver.
Good to know: How to update audio drivers in Windows 11 & 10
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That is all. It is that simple to fix the “Can not connect to RPC service” error when opening the Realtek Audio Console app in Windows 11 or Windows 10. If you have any questions or need help, comment below.