Open System Preferences again and set Allow apps downloaded from to Anywhere.

Hold the Option key, right-click System Preferences in the Dock and choose Force Quit.

Click on Utilities and select the Terminal.Ĥ.

Immediately press and hold Command + R until you see an Apple logo or a spinning globe.

Several users reported that this method helped them fix Installation failed message while installing VirtualBox, so be sure to try it.ģ. Once the command is executed, check if the issue is still there.

You should see System software from developer “Oracle America, Inc.” was blocked from loading message at the bottom.įew users suggested that you need to start the VirtualBox installation and follow the steps on the screen until you see Change Install Location option and then try the method from above.

Go to the Security & Privacy section again.

If not, click the lock icon and change it.

Now make sure that Allow apps downloaded from is set to App Store and identified developers.

Navigate to the Security & Privacy section.

Open the Apple menu and choose System Preferences.

How can I fix Installation failed message in Oracle VirtualBox on Mac? 1. Home › Mac › Oracle VirtualBox installation failed on Mac

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