How to delete win7 system

under Apple Mac dual system 1. First open other folders from LaunchPad, then click on the Boot Camp assistant icon, click on the “Continue” button in the pop-up interface;

2. Next check the “Remove Windows 7 or higher” option and click Continue.

3, then click on the "Restore" button below;

4, in the pop-up interface, enter the administrator's password, after entering, click the "good" button ;

5, this time will start to uninstall, wait for it to be uninstalled after clicking to exit, so you can successfully uninstall the win7 system in the dual system.