1. After opening the video, click Tools-Internet Options-Security on the menu bar, set the security level to high, and click Apply; 2. Then pull the progress bar in the video window to the end position; 3. Finally, set the security level to the default value, click OK, and play the video until the end, and the chapter ends. Repeat the above operations to learn everything and get it done in a few minutes.

How to quickly complete the required courses: 1 After opening the video, click Tools-Internet Options-Security on the menu bar, set the security level to high, and click Apply; 2. Then pull the progress bar in the video window to the end position; 3. Finally, set the security level to the default value, click OK, and play the video until the end, and the chapter ends. Repeat the above operations to learn everything and get it done in a few minutes.