NDIS Usermode I/O Protocol - Windows Vista Service
NDIS User mode I/O driver by Microsoft Corporation.
This service also exists in Windows 10, 11, 7, 8 and XP.
Startup Type
| Windows Vista edition | without SP | SP1 | SP2 |
|---|---|---|---|
| Starter | Manual | Manual | Manual |
| Home Basic | Manual | Manual | Manual |
| Home Premium | Manual | Manual | Manual |
| Business | Manual | Manual | Manual |
| Ultimate | Manual | Manual | Manual |
Default Properties
| Display name: | NDIS Usermode I/O Protocol |
| Service name: | Ndisuio |
| Type: | kernel |
| Path: | %WinDir%\system32\DRIVERS\ndisuio.sys |
| Error control: | normal |
| Group: | NDIS |
Default Behavior
The NDIS Usermode I/O Protocol service is a kernel mode driver. If NDIS Usermode I/O Protocol fails to start, the error is recorded into the Event Log. Windows Vista startup proceeds, but a message box is displayed informing you that the Ndisuio service has failed to start. If you disable this service, then 2 other services will be unable to start (see the "Dependencies" section below).
Dependencies
If the NDIS Usermode I/O Protocol is stopped, the following services will not start and initialize:
Restore Default Startup Type of NDIS Usermode I/O Protocol
Automated Restore
1. Select your Windows Vista edition and Service Pack, and then click on the Download button below.
2. Save the RestoreNDISUsermodeIOProtocolWindowsVista.bat file to any folder on your hard drive.
3. Right-click the downloaded batch file and select Run as administrator.
4. Restart the computer to save changes.
Note. Make sure that the ndisuio.sys file exists in the %WinDir%\system32\DRIVERS folder. If this file is missing you can try to restore it from your Windows Vista installation media.