Windows Vista Services

NDIS Usermode I/O Protocol - Windows Vista Service

NDIS User mode I/O driver by Microsoft Corporation.

This service also exists in Windows 10, 7, 8 and XP.

Startup Type

Windows Vista edition without SP SP1 SP2
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Default Properties

Display name:NDIS Usermode I/O Protocol
Service name:Ndisuio
Error control:normal

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).


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.

Yea, though I walk through the valley of the shadow of death, I will fear no evil: for thou art with me; thy rod and thy staff they comfort me.