Bcmfn2 Service Defaults in Windows 11
Default Settings
| Startup type: | Manual |
| Display name: | Bcmfn2 Service |
| Service name: | bcmfn2 |
| Service type: | kernel |
| Error control: | normal |
| Group: | Extended Base |
| Path: | %SystemRoot%\System32\drivers\bcmfn2.sys |
| Registry key: | HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\bcmfn2 |
Default Behavior
Bcmfn2 Service is a kernel driver. In Windows 11 it starts only if the user, an application or another service starts it. If Bcmfn2 Service fails to start, the failure details will be recorded into Event Log. Then Windows 11 should boot up and notify the user about the bcmfn2 service startup failure.
Restore Default Startup Configuration of Bcmfn2 Service
1. Run the Command Prompt as an administrator.
2. Copy the command below, paste it into the command window and press ENTER:
sc config bcmfn2 start= demand
3. Close the command window and restart the computer.
The bcmfn2 service is using the bcmfn2.sys file that is located in the C:\Windows\System32\drivers directory. If the file is removed or corrupted, read this article to restore its original version from Windows 11 installation media.