This is the case when downloading KBao installation driver directly recently, and the signature display failed. You can do this: Open the homepage of Agricultural Bank of China, find the word "Install" in the lower right corner of "Personal Online Banking Login", click Open, find your KTresource type in the opened page, click the selection circle in front of the KTresource pattern, then click "Driver Installation" below, and select "Run" or "Save" in the pop-up box, and the installation is successful.