Win7 four services that can never be turned off

I believe many people use win7, and under normal circumstances we just installed the system will find that when the system starts, it will start a lot of services we do not need. At this time, we usually close some service processes in the 360 ​​security guards. At that time, some processes could never be closed. There are only four examples here.
1
DNSClient Service
This is to resolve DNS, in simple terms. If you disable this process, you can't access this website by entering www.355189.com. It can only be accessed by finding the IP address of this website. This will cause a lot of trouble for your daily use, so you can't disable it.
2
NetworkConnections Service
This service is for managing the network. Disabling this service will result in you not being able to access the Internet. I believe that you dare not disable it.
3
DHCPClient Service
The computer needs the service required to get the dynamic IP. If it is disabled, you will only be able to manually set the IP address. It is not recommended to disable it. Otherwise, it may cause you to be unable to access the Internet.
4
NetworkLocationAwareness(NLA) Service
Used to collect some configuration of the computer network. If you disable the configuration information of your network, it may not be used. There is a big probability that you can't get online.
The above are four services that can't be turned off in win7. I believe that in addition to services that cannot be accessed online, other services are based on personal needs. If some services are disabled, you cannot use the printer, but it is useless for most people.