Fix "App Can't Be Opened Because It's From an Unidentified Developer" on MacBook

Frustrated by the "App can't be opened" error on your MacBook? Downloading apps outside the App Store often triggers this security message. Don't worry, it's fixable! This guide provides clear, step-by-step instructions to bypass this restriction and safely run your downloaded application. We'll walk you through adjusting your Mac's security settings, ensuring your downloaded app runs smoothly without compromising your system's security. Let's get started!

Step-by-Step Instructions

  1. Access Security & Privacy Settings

    • Click on System Preferences
    • Click on Security & Privacy
    • Select the General option
    Select the General option Select the General option Select the General option
    Access Security & Privacy Settings
  2. Unlock Security Preferences

    • Click the lock icon to make changes
    • Enter your Mac password and click Unlock
    Enter your Mac password and click Unlock Enter your Mac password and click Unlock
    Unlock Security Preferences
  3. Change App Download Settings

    • Click on "Anywhere" under "Allow apps downloaded from"
    Click on "Anywhere" under "Allow apps downloaded from"
    Change App Download Settings
  4. Lock Settings and Open App

    • Click the lock icon again to prevent further changes
    • Close the window and open the app again
    Close the window and open the app again Close the window and open the app again
    Lock Settings and Open App
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Tips

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Common Mistakes to Avoid

1. Incorrect Security Settings

Reason: The System Preferences are not properly configured to allow apps from unidentified developers.
Solution: Go to System Preferences > Security & Privacy > General and temporarily allow the app from the identified developer.

2. Incomplete Download or Damaged App File

Reason: The downloaded application file is corrupted or incomplete, preventing macOS from verifying its authenticity.
Solution: Re-download the application from a trusted source and verify the integrity of the downloaded file.

3. Conflicting Software or Security Extensions

Reason: Third-party security software or extensions might interfere with the verification process.
Solution: Temporarily disable conflicting security software or extensions, then try opening the application again.