CONTENTS
Some users may encounter a common hiccup when installing MPC expansions on macOS due to Apple's stringent security settings.
This article will guide you through the steps to overcome the error message "can't be opened because Apple cannot check for malicious software."
Understanding the Error
This error arises because macOS includes security features designed to prevent downloaded applications from causing harm to your computer. By default, macOS allows apps from the App Store and identified developers, but it can block other software installations.
Step-by-Step Solution
Here's a straightforward method to install your MPC expansions without disabling the overall security settings on your Mac:
- Locate the Expansion Installer: Find the downloaded MPC Expansion installer file in your Finder.
- Right-Click the Installer: Instead of double-clicking the file, right-click (or Ctrl-click if you're not using a mouse) on the installer.
- Open With Security Override:
- Choose "Open" from the context menu. This action prompts macOS to present a slightly different alert message.
- A warning will pop up stating that the software is from an unidentified developer. This time, however, you will have the option to open it anyway.
- Confirm Your Action: Click "Open" in the popup window to bypass the security gate. macOS will remember your authorization, allowing you to run the installer in the future without repeating these steps.
- Follow Installation Prompts: Proceed with the installation as you normally would once the application launches.
Additional Tips
- Security Preferences: If you frequently install third-party software, consider adjusting your security settings by going to System Preferences > Security & Privacy > General.
- Gatekeeper Reset: If you’re tech-savvy, you can reset macOS’s Gatekeeper via the Terminal to accept all apps temporarily. Use this method cautiously as it can expose your system to potential threats.