NetBT Service Defaults in Windows 7

This service implements NetBios over TCP/IP.

Default Settings

Startup type:System
Display name:NetBT
Service name:NetBT
Service type:kernel
Error control:normal
Group:PNP_TDI
Path:%SystemRoot%\System32\DRIVERS\netbt.sys
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\NetBT

Default Behavior

NetBT is a kernel device driver. In Windows 7 it is being loaded at Kernel initialization. If NetBT fails to start, Windows 7 attempts to write the failure details into Event Log. Then Windows 7 startup should proceed and the user should be notified that the NetBT service is not running because of the error.

Dependencies

NetBT is unable to start, if at least one of the following services is stopped or disabled:

If NetBT is stopped, the TCP/IP NetBIOS Helper service fails to start and initialize.

Restore Default Startup Configuration for NetBT

Before you begin doing this, make sure that all the services on which NetBT depends are configured by default and function properly. See the list of dependencies above.

1. Run the Command Prompt as an administrator.

2. Copy the commands below, paste them into the command window and press ENTER:

sc config NetBT start= system
sc start NetBT

3. Close the command window and restart the computer.

The NetBT service is using the netbt.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 7 installation media.