Windows 10 Services

NetIO Legacy TDI Support Driver - Windows 10 Service

NetIO Legacy TDI Support Driver.

This service also exists in Windows 7, 8 and Vista.

Startup Type

Windows 10 version Home Pro Education Enterprise
1507 System System System System
1511 System System System System
1607 System System System System
1703 System System System System
1709 System System System System
1803 System System System System

Default Properties

Display name:NetIO Legacy TDI Support Driver
Service name:tdx
Error control:normal

Default Behavior

The NetIO Legacy TDI Support Driver service is a kernel mode driver. If NetIO Legacy TDI Support Driver fails to start, the error is logged. Windows 10 startup proceeds, but a message box is displayed informing you that the tdx service has failed to start.


NetIO Legacy TDI Support Driver is unable to start, if the TCP/IP Protocol Driver service is stopped or disabled.

If NetIO Legacy TDI Support Driver is stopped, the following services cannot start:

Restore Default Startup Type for NetIO Legacy TDI Support Driver

Automated Restore

1. Select your Windows 10 edition and release, and then click on the Download button below.

2. Save the RestoreNetIOLegacyTDISupportDriverWindows10.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 tdx.sys file exists in the %WinDir%\system32\DRIVERS folder. If this file is missing you can try to restore it from your Windows 10 installation media.