There are three steps in using U shield: (Take ICBC as an example) Step 1: Install the driver. If it is the first time for you to use personal online banking on your computer, please refer to the installation guide of personal online banking system of China Industrial and Commercial Bank, download and install the personal online banking control first, and then install the U shield driver. The drivers of different brands of U Shield can only use this brand. If you want to install by CD, please run the U Shield CD and select "System Upgrade" on the main installation page. The system will automatically detect and prompt you to install the patch. After installing the patch, please select "Driver Installation" to install the U shield driver. Step 2: Download the certificate information certificate When the customer logs into the personal online banking for the first time, the computer will prompt the personal ICBC CA to issue the root certificate. This root certificate is used to authenticate the website of Industrial and Commercial Bank of China. Please click "Yes" to indicate that you accept ICBC's personal online banking service. After you install the corresponding certificate driver, before using other functions of personal online banking, please log in to personal online banking first, and then click "Security Center" and select "U Shield Management" function in the column of "U Shield Self-download" to download your personal customer certificate to U Shield. Step 3: If you need to handle external payment services such as transfer, remittance and payment after logging in to personal online banking, you only need to insert the U shield into the USB interface of the computer according to the system prompt, enter the U shield password and verify it by the banking system, and you can complete the payment service.