Generic USB Function Class (genericusbfn) Service Defaults in Windows 11
Generic USB Function Class Driver by Microsoft Corporation.
Default Settings
| Startup type: | Manual |
| Display name: | Generic USB Function Class |
| Service name: | genericusbfn |
| Service type: | kernel |
| Error control: | normal |
| Group: | Base |
| Path: | %SystemRoot%\System32\DriverStore\FileRepository\genericusbfn.inf_amd64_7c70b7fb8f0e88ff\genericusbfn.sys |
| Registry key: | HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\genericusbfn |
Default Behavior
Generic USB Function Class is a kernel driver. In Windows 11 it starts only if the user, an application or another service starts it. If Generic USB Function Class fails to start, the failure details will be recorded into Event Log. Then Windows 11 should boot up and notify the user about the genericusbfn service startup failure.
Restore Default Startup Configuration of Generic USB Function Class
1. Run the Command Prompt as an administrator.
2. Copy the command below, paste it into the command window and press ENTER:
sc config genericusbfn start= demand
3. Close the command window and restart the computer.
The genericusbfn service is using the genericusbfn.sys file that is located in the C:\Windows\System32\DriverStore\FileRepository\genericusbfn.inf_amd64_7c70b7fb8f0e88ff directory. If the file is removed or corrupted, read this article to restore its original version from Windows 11 installation media.