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 a driver file without digital signature, we can choose: Ignore, and then click: Apply-OK;

note:

Warning: Notify users of files that are not digitally signed, and let users decide whether to stop or continue the installation, and whether to allow the installation of files that are not digitally signed.

Block: Indicates that the system refuses to install files that are not digitally signed.

Ignore: Command the system to continue the installation (including installing files that are not digitally signed).

It is strongly recommended that after the driver is installed, the item just set to ignore should be set as warning (default setting) to enhance the security of the system.

The above method is one of the methods to disable driver signature enforcement in Windows8 system.