2. Find the driver to be modified and right-click and select "Properties".
3. Select the Digital Signature tab in the pop-up dialog box, and then click Details.
4. Select "View Certificate" in the pop-up dialog box, and then select "Install Certificate".
5. After completing the certificate installation as prompted, open the driver properties dialog box again, and you can see that the "Digital Signature Information" in the "Digital Signature" tab has changed to "This driver is unsigned".