Link-Layer Topology Discovery Mapper I/O Driver - Windows 10 Service
Link-Layer Topology Discovery Mapper I/O Driver.
This service also exists in Windows 11, 8 and Vista.
Startup Type
| Windows 10 version | Home | Pro | Education | Enterprise |
|---|---|---|---|---|
| 1507 | Automatic | Automatic | Automatic | Automatic |
| 1511 | Automatic | Automatic | Automatic | Automatic |
| 1607 | Automatic | Automatic | Automatic | Automatic |
| 1703 | Automatic | Automatic | Automatic | Automatic |
| 1709 | Automatic | Automatic | Automatic | Automatic |
| 1803 | Automatic | Automatic | Automatic | Automatic |
| 1809 | Automatic | Automatic | Automatic | Automatic |
| 1903 | Automatic | Automatic | Automatic | Automatic |
| 1909 | Automatic | Automatic | Automatic | Automatic |
| 2004 | Automatic | Automatic | Automatic | Automatic |
| 20H2 | Automatic | Automatic | Automatic | Automatic |
| 21H1 | Automatic | Automatic | Automatic | Automatic |
| 21H2 | Automatic | Automatic | Automatic | Automatic |
| 22H2 | Automatic | Automatic | Automatic | Automatic |
Default Properties
| Display name: | Link-Layer Topology Discovery Mapper I/O Driver |
| Service name: | lltdio |
| Type: | kernel |
| Path: | %WinDir%\system32\drivers\lltdio.sys |
| Error control: | normal |
| Group: | NDIS |
Default Behavior
The Link-Layer Topology Discovery Mapper I/O Driver service is a kernel mode driver. If Link-Layer Topology Discovery Mapper I/O Driver fails to start, the error is logged. Windows 10 startup proceeds, but a message box is displayed informing you that the lltdio service has failed to start.
Dependencies
If Link-Layer Topology Discovery Mapper I/O Driver is stopped, the following services cannot start:
Restore Default Startup Type of Link-Layer Topology Discovery Mapper I/O Driver
Automated Restore
1. Select your Windows 10 edition and release, and then click on the Download button below.
2. Save the RestoreLinkLayerTopologyDiscoveryMapperIODriverWindows10.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 lltdio.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.