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Aug 02, 2012 Changing Gatekeeper's settings (10.12.x / 10.13.x)—the same steps as above, but for Mac's Sierra and High Sierra OS; Manually allowing individual applications to launch—this is the best method for users who do not want to change the global setting to allow all applications to run. To install the latest software updates on your Mac computer please follow these steps. Click on the Apple ( ) menu in the upper left hand corner and then select the Software Update menu option. Oct 07, 2019 If you download and install apps from the internet or directly from a developer, macOS continues to protect your Mac. When you install Mac apps, plug-ins, and installer packages from outside the App Store, macOS checks the Developer ID signature to verify that the software is from an identified developer and that it has not been altered. Jul 14, 2020 In this video walkthrough and tutorial we show you how to install Windows 10 on a Mac using an external SSD and Boot Camp drivers. Under the Allow Boot Media. Install Boot Camp Software.
Starting with OS X Mountain Lion, Apple introduced Gatekeeper so users couldn’t easily install downloaded apps from outside the Mac App Store.
When someone downloads an app from somewhere other than the Mac App Store they will get one of a few warning messages depending on what security settings they’ve set in System Preferences. We’ll show users how to set the security settings in Security & Privacy section of the OS X System Preferences using any version of OS X after Mountain Lion so they can install downloaded apps from outside the Mac App Store.
Why Can’t I Install 3rd-Party Apps By Default?
If you don’t care about why this works, skip to the next section. Here’s why Apple sets OS X to disallow 3rd-party apps by default, for those who like to understand why things work as they do.
Cynics will say that Apple does this because they don’t get a 30% cut from applications bought directly from third-party apps instead of their curated app store. A $10 app nets Apple $3 and the developer gets only $7. The developer gets the entire $10 if the app is sold directly.
Apple says they set things blocking third-party apps because they want to protect users who might install downloaded apps with malware or viruses. They take the 30% cut to cover the cost of hosting the Mac App Store and testing apps to keep malware out of the store. In other words, they want to help protect us from our own mistakes.
Apple offers three setting options in the Security & Privacy Settings in System Preferences. Apple set the default to help protect users from Malware or to lock down computers depending on which explanation you prefer.
Apple created Gatekeeper, a program to protect users from Malware. Developers can get a security certificate from Apple through the Apple Developer program. If a developer distributes their app on the Mac App Store, they have to follow certain guidelines to get approved. These guidelines try to keep malware out of the store. Developers can also add a security certificate to their apps. The certificate is some code inserted into the app code. Users can set their machines to allow third-party apps downloaded from the Internet, but only if they include one of these security certificates.
Find out how to change the settings below so you can install downloaded apps from trusted third-party websites. Don’t install apps from just any site because relaxing security settings could potentially open the door to malware and viruses.
How to Install Apps from Outside the Mac App Store
To install third-party apps, the user must change a setting in the Security & Privacy section of System Preferences, the Settings app in OS X.
Open OS X System Preferences by clicking on the app icon from OS X Dock or by clicking the Apple icon in the Menu Bar in the upper left corner of the screen. When the menu pops up, click on System Preferences.
Click on Security & Privacy from the top row of the System Preferences app. Choose the General tab to see the settings below.
There’s a lock icon at the bottom of the dialog box. Click it to enable all the settings in the box. The OS will ask the user to enter their administrator’s password. Click OK and the grayed out settings become clickable.
The settings we need to work with show up at the bottom half of the dialog box. There are three options under Allow apps downloaded from:. Here are the descriptions taken from Apple’s support site.
- Mac App Store – Only apps that came from the Mac App Store can open.
- Mac App Store and identified developers (default in OS X) – Only allow apps that came from the Mac App Store and developers using Gatekeeper can open.
- Anywhere – Allow applications to run regardless of their source on the Internet (default in OS X Lion v10.7.5); Gatekeeper is effectively turned off. Note: Developer ID-signed apps that have been inappropriately altered will not open, even with this option selected.
If the user chooses the first two options, they can close the dialog box and continue. However, if the user chooses Anywhere, the above warning pops up to scare the user from using this setting. It says:
Choosing “Anywhere” makes your Mac less secure.
The warning box explains that OS X resets this setting after 30 days. Users will have to come back here and do the above steps again. Further, it explains that it’s safer to let the OS warn you each time you launch an app, which includes an option to allow it by clicking an OK button if you select the middle option of the three.
Which Option Should You Choose?
Those who only install apps from the Mac App Store should not bother changing the default settings. Make sure to select the first option labelled Mac App Store and close the box. If you want to install and run any app you want and don’t worry at all about malware, then choose the third option labelled Anywhere. I use the second option since I can still install third-party apps, but they have to come from developers who take the time to add an Apple Developer security certificate to their app. These are safe, but can come from outside the Mac App Store.
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Apple would prefer you to only download approved apps from the App Store, but that isn’t always possible. If you find a suitable app online that hasn’t been approved for installation, macOS will block it from launching. This security feature is well-intended, but you’ll need to bypass it to install some of your own third-party apps.
Thankfully, it’s a pretty easy process to run unverified apps on a Mac. Before we begin, remember that this security measure exists for a reason. Only consider installing apps from sources you trust, or you may put your Mac at risk, even with Mac antivirus software installed.
Allow Unverified Apps In System Preferences
When you first attempt to open an app from an unverified developer, Apple will block it, displaying an alert box instead. macOS will always prevent apps it doesn’t recognize from launching without your approval.
It’s also possible that your macOS security settings prevent any apps from being launched that aren’t from the App Store. This includes apps from verified developers that have been downloaded from the internet directly.
- If you’re unable to launch an unverified app (or a verified app that isn’t from the App Store), you’ll need to head to System Preferences. You can access this from your Dock directly, or launch it from within Launchpad.
- In System Preferences, click Security & Privacy > General, then click the Lock button to allow you to make changes to your settings. You’ll need to provide your password, or use Touch ID, to unlock this.
If your app is from a verified developer but it isn’t from the App Store, under the category named Allow apps downloaded from, select App Store and identified developers.
- The last app you attempted to open will be listed underneath your App Store security options. To launch the app (or rather, the DMG image file containing your app), click Open Anyway.
You’ll need to do this for each unverified app you launch, as Apple removed the option to automatically allow this in an earlier version of macOS. You’ll only need to do this for a particular app once, however.
If you’ve clicked Open Anyway, the DMG image file containing your unverified app will launch. Most DMG files contain your enclosed application file, as well as a shortcut to your Applications folder.
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- To install this unverified app, drag your app icon and drop it on the Applications shortcut in your Finder window. This will copy the app from your DMG image file to your macOS installation, allowing it to be accessed from Launchpad or from within the Applications folder in Finder.
- Once installed, if you haven’t previously opened the app, macOS will warn you that you’re attempting to open an app from the internet. You’ll need to approve it for launch, so click the Open button to do this.
Open Unverified Apps Without Installation
Among the many things that Finder allows you to do it is the ability to view the contents of a DMG image file before you install an app. Rather than dragging your enclosed app to the (usually supplied) Applications shortcut, you can open the app straight from your DMG file instead without installing it.
- To do that, open your DMG file. To do this, you can either double-click on the application icon, or right-click on the application file in your Finder window and click the Open button.
- A warning about the unverified app will appear. This will inform you that you’re attempting to open an app from the internet. Click Open to allow it to launch. You can also select the Don’t warn me when opening applications on this disk image checkbox to allow all apps in your DMG file to launch without a warning.
Your app will launch at this point. As it won’t be installed on your system, you’ll need to repeat this process to launch it again once you close it.
Using Homebrew To Run Unverified Apps on Mac
While Apple would prefer you to install apps through the App Store, you can bypass it completely with Homebrew. The benefit of using Homebrew to install macOS apps is that it bypasses the security mechanisms that Apple uses to “protect” you from unverified apps.
This is a double-edged sword, as while you’ll be able to install unverified apps, you’ll need to ensure that you only install apps and software that you trust.
Homebrew acts as a package manager in the same way that APT does on Linux does. It allows you to install apps using the macOS terminal, either individually, or using it to create a bulk installer to install multiple apps at once.
How To Install Mac
This might be useful to install multiple apps to new macOS devices, for instance.
- To install Homebrew, start by opening up a macOS Terminal app window. You can find the Terminal app in the Launchpad > Other folder, or by searching for Terminal in Spotlight, which you can access by clicking the search icon in the top menu bar.
- To install Homebrew, type /usr/bin/ruby -e “$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)” in your Terminal window, then click enter twice. This will deploy the automated installation script created by the Homebrew developers.
- The installation process for Homebrew should complete automatically. The Terminal window will update with the message Installation successful upon completion.
Once Homebrew is installed, you can then search for potential Homebrew apps by typing brew search appname, replacing appname with a partial or full app name. You can also search for these on the Homebrew website.
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- Once you’ve located a suitable installation package for an app, you can type brew cask install appname, replacing appname with the app. For instance, to install Firefox, typing brew cask install firefox would download and install the relevant package for Firefox.
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Once the installation process has completed, your app will be available to launch from the Launchpad, or from the Applications folder in Finder, alongside your other Mac apps.