1. Click "Start" in the lower left corner of the screen to open the "Run" program in "All Programs", enter "gpedit.msc" in the pop-up run window, and then press "OK".
2. The Local Group Policy Editor window will pop up. In the tree directory on the left side of the window, find the Manage Templates option under User Configuration and select it.
3. Find the item "System" under "Management Template" and select this item.
4. Under System, find the item "Driver Installation", select this item, and then select the item "code signing of device driver" in the right window.