1. Press Win + X on the desktop and click "computer management" in the menu, as shown in the following figure;
2. Now, on the "computer management" page, click "Device Manager", right-click the host name on the right border, and select "Add obsolete hardware" in the pop-up menu ";
3. The wizard prompts us to click "next ";
4. Select install hardware I manually selected from the list (advanced) in order of A-B as shown below
5. In the hardware addition, pull the slider shown in "A" to the bottom, select "network adapter" based on "B", and then click "next ";
6. Wait a while until the following figure appears. From vendor, select Microsoft-network adapter-Microsoft KM-TEST loop adapter-next ";
7. Click "next" in the wizard, as shown in the following figure.
8. Click "finish ";
9. Go back to the Device Manager and check "network adapter" to see the added virtual network adapter.