Realtek NetAdapter Driver (rtcx21) Service Defaults in Windows 11
Realtek NetAdapter Driver by Realtek.
Default Settings
| Startup type: | Manual |
| Display name: | Realtek NetAdapter Driver |
| Service name: | rtcx21 |
| Service type: | kernel |
| Error control: | normal |
| Path: | %SystemRoot%\System32\DriverStore\FileRepository\rtcx21x64.inf_amd64_feec7a9662e785f0\rtcx21x64.sys |
| Registry key: | HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\rtcx21 |
Default Behavior
Realtek NetAdapter Driver is a kernel driver. In Windows 11 it starts only if the user, an application or another service starts it. If Realtek NetAdapter Driver fails to start, the failure details will be recorded into Event Log. Then Windows 11 should boot up and notify the user about the rtcx21 service startup failure.
Restore Default Startup Configuration of Realtek NetAdapter Driver
1. Run the Command Prompt as an administrator.
2. Copy the command below, paste it into the command window and press ENTER:
sc config rtcx21 start= demand
3. Close the command window and restart the computer.
The rtcx21 service is using the rtcx21x64.sys file that is located in the C:\Windows\System32\DriverStore\FileRepository\rtcx21x64.inf_amd64_feec7a9662e785f0 directory. If the file is removed or corrupted, read this article to restore its original version from Windows 11 installation media.