1. Open the IE browser, select the trusted root certification authority in the Internet options, and check "Import"

2. Enter the "Certificate Import Wizard" and select "Next"

3. Select "Browse", find the saved certificate chain file, and click "Next"

4. The system will store the certificate chain in the "Trusted" folder by default. Any root certificate authority"

5. Select "Yes" in the pop-up security warning page to complete the installation of the certificate chain

6. When the import is successful, the installation is complete

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