How to solve the problem after the Win7 system is reinstalled?

1. First, make sure that the matching network card driver is not installed in the computer. Open the device manager and find the option in the red box in the figure below, that is, “Ethernet controller” ; If some items appear in the yellow sign shown below, you can be sure that the computer is not installed properly and the computer is not able to access the Internet.

2, then use other devices that can access the Internet to download and install the driver wizard software. After the download is complete, transfer the file to a computer that cannot access the Internet and double-click the file to install it.

3. After the software is installed, open the software. After the software runs, it will automatically detect the basic status of the hardware driver. If the online driver is not installed in the computer, the software will pop up the page shown below. In the figure below, there will be a QR code icon for the computer network card driver.

4, double-click the QR code in the above picture to enlarge the base, and then use the mobile phone and other equipment to scan the QR code. After the scan is successful, it will be opened on the mobile phone and adapted to the computer network card driver. Driver, after downloading the driver on the mobile phone, use the data cable to transfer it to the computer.

5, double-click on the computer to install the NIC driver, the software installation process is as shown below

6, after the NIC driver installation is complete, the following interface will pop up, you can also find the desktop right The difference sign of the Internet icon in the lower corner disappears. After the logo shown in the figure below appears, you can access the Internet.