1. Open IE browser, click alt in the browser, and then click Tools-Internet Options. 2. Click the "Advanced" tab in the Internet window, find "Allow running or installing software even if the signature is invalid" in the setting window below and select it.
3. Then close ie, reopen the webpage where the plug-in needs to be installed before installation, and the message "Unable to verify the publisher, are you sure you want to run this software?" Will pop up. Window, we can click Run.
PS: If it is not for special purposes, it is recommended not to use IE browser. Except the system itself is really useless.
IE browser:
It is a free browser launched by Microsoft, which is directly bound to Microsoft's windows operating system. When the windows operating system is installed on the user's computer, there is no need to download and install a browser specially, and you can browse the web page with IE browser.
Plug-in:
It is a program written by the application program interface that follows a specific specification. Many softwares have plug-ins, and there are countless types of plug-ins. For example, in IE, after installing the related plug-ins, the WEB browser can directly call the plug-in program to handle specific types of files.