Windows system needs a digital signature to use the driver, otherwise it can't be used normally, but sometimes it needs a driver without a digital signature. At this point, it is necessary to disable driver signature enforcement. The specific steps are as follows:

Methods of disabling driver signature implementation in 1 and Windows7 systems

Start-Run (enter gpedit.msc)- OK or press Enter. Open the local group policy editor;

2. In the opened local group policy editor window, find: User Configuration-Management Template;

3. Found: System, expanded in the extension of the management template;

4. In the expanded item of the system, find: driver installation, and left-click: driver installation;

5. In the right window corresponding to driver installation, find: code signing of device driver, and left click: code signing of device driver;

6. In the device-driven code signing window that opens, select Enable. In the drop-down box options, you can choose Warning, Blocking and Ignore.

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).

If you want to install a driver file without digital signature, you can choose: Ignore, and then click: OK;

7. After the driver installation is completed, it is suggested to set the item just set to ignore as warning (default setting) to enhance the security of the system.