1. IE browser of operating system is damaged by virus, and IE browser needs to be reinstalled;
2. When you downloaded some software, you mistakenly installed the plug-in and intercepted the online banking of ABC. At this time, open the plug-in tool and let go of interception.
3. The computer operating system has been used for a long time, so the temporary files are piled up and cleaned up. The solution is: first open any webpage and select Tools → Internet Options → General → Delete Cookies(I)→ Delete Files (f). Where "Delete File (F)" needs to click "√ Delete all offline contents" and "OK".
(Answer time: June 30, 2020 10. In case of business changes, please refer to the actual situation. )