Mac won't open an app because it's from an unidentified developer
This is macOS protecting you from apps it doesn't recognize. If you trust the app and downloaded it yourself, right-click the app and click Open. This tells macOS you're willing to run it.
macOS blocks apps from unknown developers as a safety feature. It doesn't mean the app is bad, just that Apple hasn't checked it or the developer hasn't paid to be on Apple's approved list. You can open it anyway if you trust the source.
Risk: Medium
⏱ 2 minutes
Beginner
⚡ Before you start
- ✓Have the app in your Downloads or Applications folder
- ✓Know that the app came from a trusted source
- ✓Be ready to right-click instead of double-click
Fix-IT-Bot will walk you through each step, just tap, no typing needed.
Skip, I just want a technicianCommon mistakes to avoid
- Double-clicking the app instead of right-clicking — the warning will just appear and disappear without launching the app
- Assuming the warning means the app is dangerous — it just means Apple hasn't verified it
- Leaving the app in Downloads instead of moving it to Applications — it can't work as well there
Signs you need professional help
- Right-clicking the app and clicking Open doesn't make it launch. The app launches but crashes immediately after opening. You're not sure if the app source is actually safe.
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