Unable to start DHCP Client

Symptom: Due to misoperation, inadvertently deleted the registry in the Windows 7 system about Winsock, and then I uninstall the TCP/IP protocol, and then reload the protocol, completed, only to find that all VPN software is not available, prompted the "DHCP Client service failed to start , run the following command at the command prompt, as provided online:

netsh winsock reset

Still can't solve the problem. Manually opening the DHCP Client service in the service prompts: Error 2: The system cannot find the specified file. "And I also found that the Tcpip NetBIOS Helper service did not start. How to solve this kind of trouble?

Workaround: Editing the registry is a very risky behavior, so it is recommended that you export the dependencies of the backup registry before the operation, which can often have disastrous consequences. There are two ways of remedying: If you turn on the System Restore feature of Windows 7, you can revert to a point in time before the key value of the registry is removed, or, if you turn off System Restore or cannot be restored, to the other normal, same version of the Windows 7 system, to find the corresponding deleted key value path, After export copy to the computer, double-click Import to the registry, you can also resolve