Can’t Open Downloaded Mac Apps on Mavericks? The Solution.

There’s often times when you have to download something from the Internet, via your browser. Let’s say you want to download a fun game that you found on a website. The problem is that Apple thinks that this software, and this website, may be dangerous to your Mac. Most of the time, this isn’t the case and you want to proceed to download the app and use it anyway, regardless of what Apple thinks about it. Some recent new security settings in Mac OS X 10.9 and Mavericks will not allow you to run any software from any sources other than the Mac App Store, which means, you wouldn’t be able to play that fun game you just downloaded.

To fix this potentially annoying issue, we have to alter the Mac OS X security settings to allow these types of apps to run from anywhere–not just the Mac App Store. It’s actually remarkably easy to accomplish by following along here.

  1. First, launch your System Preferences from the Apple menu
  2. Choose “Security and Privacy”
  3. Unlock this pane by clicking on the padlock, lower left. You will have to have your admin password to pull this off.
  4. When unlocked, you will be able to choose the button that says “Allow apps downloaded from:” and choose “Anywhere”
  5. Now, select the “Allow from Anywhere” button, in the next warning pop-down window
  6. Close the System Preferences window and you are now able to open these 3rd party apps

Keep in mind, this does open your Mac to possible rogue applications, which can do harm to your Mac. You can also come back to this pane and lock it back to only allowing apps to be installed from the Mac App Store and identified developers at any time.