MAC drives file trust operation

1: In the system preferences, find the "Security and Privacy" option; 

2: In the security and privacy, find the lock icon in the lower left corner, and then click the lock, the window will pop up to enter the computer startup password, after entering the password, click the "unlock" button, the lock type becomes the open lock; 

3: After unlocking, if your computer has three options for allowing apps to be downloaded from the following locations, select "Any source" from the options for allowing apps to be downloaded from the following locations and click "Allow from any Source" in the pop-up confirmation box; If there are only two options on your computer that allow you to download applications from the following locations, then you can directly open the installation package of the program you just need to install, double-click to reinstall it, and there will be a prompt box that allows you to install from any source, and then the installation is successful.