1. Open Internet Explorer-menu bar, click Tools-Internet Options-Security-Custom Level-Security Settings-Download Unsigned ActiveX Control under ActiveX Controls and Plug-ins, and select Prompt-OK! Just refresh the page to be installed (because the software used has not passed the Microsoft logo certification, it is not allowed to install such programs in SP2 by default, and the solution is as follows.

Start-Control Panel-System-Hardware. Among them, there is an option of "drive signature" in the driver. Choose the first option: Ignore-install the software without asking my advice. )

2. Open Internet Explorer-click Tools-Internet Options-Security-User-defined Level on the menu bar-and change all the disabled items to enabled.

3. Open Internet Explorer-menu bar, click Tools-Internet Options-Advanced Options, and select "Allow running and installing software even if the signature is invalid".