Link-Layer Topology Discovery Mapper I/O Driver (lltdio) Service Defaults in Windows 10

Link-Layer Topology Discovery Mapper I/O Driver.

Default Settings

Startup type:Automatic
Display name:Link-Layer Topology Discovery Mapper I/O Driver
Service name:lltdio
Service type:kernel
Error control:normal
Group:NDIS
Path:%SystemRoot%\system32\drivers\lltdio.sys
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\lltdio

Default Behavior

Link-Layer Topology Discovery Mapper I/O Driver is a kernel device driver. In Windows 10 it is starting automatically when the operating system starts. If Link-Layer Topology Discovery Mapper I/O Driver fails to start, the failure details are being recorded into Event Log. Then Windows 10 will start up and notify the user that the lltdio service has failed to start due to the error.

Dependencies

While Link-Layer Topology Discovery Mapper I/O Driver is stopped, disabled or working incorrectly, the following services do not start:

Restore Default Startup Configuration for Link-Layer Topology Discovery Mapper I/O Driver

1. Select your Windows 10 edition and release, and then click Download.

2. Save the Win10_lltdio_Service_Startup.cmd file to a local storage device.

3. Run the saved file as an administrator.

4. Restart the computer.

The lltdio service is using the lltdio.sys file that is located in the %WinDir%\system32\drivers folder. If the file is changed, damaged or deleted, you can restore its original version from Windows 10 installation media.