In the process of installing software on the computer, these softwares do not have valid digital signatures, which will cause system prompts. Actually, the solution is simple. Let's look at a solution without a valid digital signature.

First, double-click to open ie browser, and select Tools → Internet Options in the upper right taskbar to open the Internet Options window of the browser, as shown in the figure below:

After opening the Internet Options window, you can see that we are currently in the General tab and switch to the Advanced tab, as shown in the figure:

Find "Allow running or installing software even if the signature is invalid" in the settings bar of the Advanced tab, check it, and finally confirm to save the settings.