Windows 7 Services

NDIS Usermode I/O Protocol - Windows 7 Service

NDIS User mode I/O driver by Microsoft Corporation.

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

Startup Type

Windows 7 edition without SP SP1
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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 driver. If the NDIS Usermode I/O Protocol fails to load or initialize, the error is recorded into the Event Log. Windows 7 startup should proceed, but a message box is displayed informing you that the Ndisuio service has failed to start.


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 7 edition and Service Pack, and then click on the Download button below.

2. Save the RestoreNDISUsermodeIOProtocolWindows7.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 7 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.