"Find the application needed to install the certificate in Explorer. Then right-click and select the property you want to open. Select the Digital Signature tab in the Properties dialog box. Select the signature information in the signature list, and then click Details. In the certificate dialog box, you can see the Install Certificate button. At the same time, you can see that the Certificate Information contains instructions for installing the certificate. Then enter the certificate import wizard. Select "storage location" first. The storage location here is actually a choice, which is why users install it. Selecting "Current User" will only be installed for the current user; Selecting local computer will be installed for all users on the current computer. Select Finish, and then click Next to continue. Next, browse and select the location specified for storing the installation certificate. Click Browse, select "Trusted Root Certification Authority" in the new pop-up window, and then click "OK" to return to the interface of "Certificate Import Wizard". Confirm the storage location of the certificate, then click "Next" to continue, and finally click "Finish" in the completion wizard interface, after which the pop-up window of "Import Successfully" will pop up. At this point, the certificate has been installed. "
Go to Settings, find "Update and Security", click Enter, and then click "Developer Options". As you can see, at first, only Windows Store apps were allowed to be installed. We need to click on the point in front of "Side-mounted Application" to switch. Then a warning will pop up, click "Yes" to confirm activation. Later, you can see that it has been enabled in the settings. Finally, run the installer again and the installation will be successful. You can find the installed applications in the Start menu.