Start-Run (enter gpedit.msc)- OK or press Enter. Open the local group policy editor;
In the dialog window of the local group policy editor that opens, we expand: User Configuration-Manage Templates;
Found in the management template extension: system, expand the system;
In the expanded item of the system, find: driver installation, and left click: driver installation;
On the right side of the window corresponding to driver installation, we left-click: code signing of device driver;
In the device driver code signing window that opens, we left-click Enabled. The options in the drop-down box are: Warning, Blocking and Ignore for selection. If we want to install the driver file without digital signature, we can choose: Ignore, and then click: Apply-OK.