How to disable or disable automatic IPv4 Address Configuration in Windows 7 the default gateway disappears automatically

 

After setting the IP address at the company today, you will not be able to access the Internet in any case. If you enable the local connection again, the default gateway will disappear automatically. The following figure shows how to enter ipconfig in cmd:

Physical address ......: 00-22-64-55-76-8f
DHCP is enabled... no
Automatic configuration is enabled... yes
Automatically configure IPv4 address...: 169.254.1.193 (preferred)
Subnet Mask ......: 255.255.0.0
IPv4 address ......: 10.63.10.123 (copy)
Subnet Mask ......: 255.255.255.0
Default Gateway ......: 172.16.2.21
DNS server ......: 61.128.128.68
NetBIOS on TCPIP...: Enabled

We can see that there is a (copy) next to the configured IPv4 address, and the computer enables automatic IPv4 address configuration. How can we disable automatic IPv4 address configuration?
As a result, I keep Baidu. The answer is probably some answers that have failed to be tested, probably because IPv6 is hooked up, or something is hooked up in the advanced level.
So how can we remove the automatically configured IPv4 culprit?
Later, my sister accidentally tried to modify the local IP address, and found that the Internet could be accessed, while ipconfig showed normal, and the automatically configured IPv4 address disappeared. Later, my sister realized that there was a conflict between the local IP address and the IP address set by someone in the LAN. We only needed to bypass and reset a new IP address, we are all wondering how to delete the automatically configured IPv4 address.
To sum up, when solving the problem, you can't jump to the dead when you hit a wall somewhere. Maybe, when you get out of the problem, it turns out that it is only after the detour.