NDIS Usermode I/O Protocol (Ndisuio) Service Defaults in Windows 11
Default Settings
| Startup type: | Manual |
| Display name: | NDIS Usermode I/O Protocol |
| Service name: | Ndisuio |
| Service type: | kernel |
| Error control: | normal |
| Group: | NDIS |
| Path: | %SystemRoot%\system32\drivers\ndisuio.sys |
| Registry key: | HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Ndisuio |
Default Behavior
NDIS Usermode I/O Protocol is a kernel driver. In Windows 11 it starts only if the user, an application or another service starts it. If NDIS Usermode I/O Protocol fails to start, the failure details will be recorded into Event Log. Then Windows 11 should boot up and notify the user about the Ndisuio service startup failure.
Dependencies
If NDIS Usermode I/O Protocol doesn't work properly, the following services will not start:
Restore Default Startup Configuration of NDIS Usermode I/O Protocol
1. Run the Command Prompt as an administrator.
2. Copy the command below, paste it into the command window and press ENTER:
sc config Ndisuio start= demand
3. Close the command window and restart the computer.
The Ndisuio service is using the ndisuio.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.