Apple Computer tips can't be opened because it comes from an unidentified developer unable to install the downloaded Apple software solution

Users who have just installed the system, downloaded from the Apple Online website software or games, may encounter the situation prompts can not be installed, will generally prompt: "Not open * * * because it comes from an unidentified developer", because the default security settings of the Apple system is too high to adjust.

In the Apple menu, open System Preferences and click Security and Privacy. Click the "Click the Lock button to change" at the bottom left of the interface.

You will be prompted to enter your password, which is the user name and password you set when you installed the system. Some users do not have a password, you can directly unlock, if you forget the password, to the system preferences in the "Account" settings to change.

Select "Any source" and confirm "allow from any source" in the dialog box that pops up.

This way, you can then open the downloaded software to install it.