When Windows 7 is opened, the system prompts that the application has been blocked by JAVA.

The specific method is as follows:

1. Update the JAVA version and refresh the problematic webpage to prevent JAVA security issues;

2. Open the control panel from the start menu. We need to enter the control panel to modify the corresponding configuration;

3. After entering the control panel, find the JAVA option in the control panel. If you cannot find the option, switch the View mode to a large icon or icon;

4. Open security options on the JAVA control panel and find the list of exceptional sites;

5. Open the JAVA control panel and edit the list of exceptional sites. Add the sites on which we need to run JAVA scripts on the webpage to this list;

6. Add the site that needs to run the JAVA script to it, and click continue for the pop-up security warning;

7. Determine the added site and apply the JAVA security configuration;

8. When you re-open the webpage or refresh the webpage, the prompt "The application has been blocked by JAVA security" will not appear again.

The above is the solution to the Windows 7 system's webpage prompt "The application has been blocked by JAVA security". If you encounter the same problem, you can follow the above steps. I believe this will help you!