macOS High Sierra Gatekeeper

The most common messages received from users on Appked are reports that the “app” is damaged and can’t be opened. You should move it to the Trash! Like this:

Fix damaged app Message macOS High Sierra

It a simple fix and here is how we fix it:

Open the Terminal app from the /Applications/Utilities/ folder and then enter the following command syntax:

sudo spctl --master-disable

Hit return and authenticate with an admin password

Fix damaged app Message macOS High Sierra

This will allow you to open and run apps from “Anywhere” outside the Mac App Store.

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To re-enable Gatekeeper simply run the following command in the Terminal app

sudo spctl --master-enable