2. After downloading, click the certificate management tool on the desktop. If there is, it's OK. If not, go to the third step.
3. Right-click my computer and enter Management-Device Manager-Smart Card Reader.
4. Check how many files are in the smart card reader. If there are three files, enter other devices -Ukey.
5. Right-click to upgrade synchronously.
6. Click Certificate Management Tool at this time.
Further reading: How to buy insurance, which is good, and teach you how to avoid these "pits" of insurance.