3: Install Available System Software Updates You can restart any Mac by going to the  Apple menu and choosing “Restart”.Īfter the Mac boots back up again, try and re-open the app again. This is decidedly simpleton, but often simply rebooting the Mac will resolve the “app is damaged and can’t be opened” error message on the Mac, particularly if you have already re-downloaded the app from a trusted source (the Mac App Store, directly from the developer, etc). Usually you simply have to log back into the Mac App Store and re-download the app in that situation. Delete Name.app and download it again from the App Store.” then click here for different instructions at resolving. In these situations, you can try the next approach to get around the the “app is damaged and can’t be opened” error message.Īs mentioned earlier, if you are seeing a similar error with a Mac App Store app saying “Name.app is damaged and can’t be opened.

Sometimes the re-downloading approach doesn’t work, and sometimes downloading an app directly from a developer or a trusted source is not an option, and sometimes you have to download certain apps from third party sites (particularly with antiquated apps that have become abandonware). Often simply re-downloading the app, trashing the ‘damaged’ version, then relaunching the freshly downloaded copy will resolve this error message. The first thing you should do to try and remedy the “app damaged” error message is to re-download the app to the Mac, and make sure it comes from a trusted source.įor example if you are downloading Google Chrome or Signal, make sure you download those apps directly from the developer website only, do not download them from third party sites. Note if you are seeing a similar but different error message with Mac App Store apps, use this troubleshooting guide instead. Re-downloading the app, rebooting the Mac, installing system software updates, and using the command line are covered here. There are a few different tips and tricks that can remedy these ‘app damaged’ error messages on the Mac. How to Fix App Damaged and Can’t Be Opened Errors on Mac This article will offer a few ways to remedy this error message on the Mac.

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