line assistantUninstall and reinstall steps:
1. Unplug the CA certificate; Start-Control Panel-Add or Remove Programs (Programs and Features)-Uninstall/Delete: CA Certificate Assistant, Line Assistant, all programs with CA words and CA icons;
2. Right-click to exit360 Security GuardOr 360 antivirus.
3. Double-click [OK Assistant] to install. If access is denied,
4. Double-click [Registration Certificate Chain] to install. If prompted, click [Yes].
5. Double-click [Registration Extension Control] to install. If an error occurs, ignore it and click [OK].
6. After all installations are completed, restart the computer, double-click the [OK] icon on the desktop to open the OK Assistant, and insert the CA certificate.
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