In laptops or desktops, there are situations where the IP address needs to be set (and a virtual network card needs to be added) when starting the software to solve the situation where the network port of the laptop or desktop is doubled or is inconvenient to use. Therefore, we need to add a virtual network card to meet the software startup requirements. The steps are as follows:
1. Right-click My Computer on the desktop, select Management in the drop-down menu, enter Computer Management on a single computer and then enter Device Manager or (win key + X to directly enter Device Manager)
2. Select the network adapter. Select Actions - Select Add Obsolete Hardware - Select Next and follow the steps below
3. After completion, press "Win+R" to open [Run]; enter "ncpa.cpl", press Enter, and open [Network Connection]; as shown in the figure: Ethernet 4 is the loopback network card we added, also called a virtual network card.
