Microsoft IPv6 Protocol Driver (TCPIP6) Service Defaults in Windows 7
Microsoft IPv6 Protocol Driver.
Default Settings
| Startup type: | Manual |
| Display name: | Microsoft IPv6 Protocol Driver |
| Service name: | TCPIP6 |
| Service type: | kernel |
| Error control: | normal |
| Path: | %SystemRoot%\system32\DRIVERS\tcpip.sys |
| Registry key: | HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\TCPIP6 |
Default Behavior
Microsoft IPv6 Protocol Driver is a kernel device driver. In Windows 7 it won't be started if the user doesn't start it. If Microsoft IPv6 Protocol Driver 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 TCPIP6 service is not running because of the error.
Dependencies
Microsoft IPv6 Protocol Driver is unable to start, if the TCP/IP Protocol Driver service is stopped or disabled.
Restore Default Startup Configuration of 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 C:\Windows\system32\DRIVERS directory. If the file is removed or corrupted, read this article to restore its original version from Windows 7 installation media.