Microsoft IPv6 Protocol Driver (Tcpip6) Service Defaults in Windows 10

Microsoft IPv6 Protocol Driver

Default Settings

Startup type:Manual
Display name:Microsoft IPv6 Protocol Driver
Service name:Tcpip6
Service type:kernel
Error control:normal
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip6

Default Behavior

Microsoft IPv6 Protocol Driver is a kernel device driver. In Windows 10 it is starting only if the user, an application or another service starts it. If Microsoft IPv6 Protocol 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 Tcpip6 service has failed to start due to the error.


Microsoft IPv6 Protocol Driver cannot be started under any conditions, if the TCP/IP Protocol Driver service is disabled.

Restore Default Startup Configuration for Microsoft IPv6 Protocol Driver

Before you begin doing this, make sure that all the services on which Microsoft IPv6 Protocol Driver 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 command below, paste it into the command window and press ENTER:

sc config Tcpip6 start= demand

3. Close the command window and restart the computer.

The Tcpip6 service is using the tcpip.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.