Topic 3/4·PC
Mac says the app “can't be opened”
This window has only an “OK” button, so many people think the app can't be installed — it can. You just allow it in one more place in Settings, once
Do this
- 1Press “OK” to close the window for nowDon't do anything with the file and don't delete it — the file isn't broken
- 2Open System Settings → Privacy & SecurityClick the Apple logo at the top left and choose “System Settings”
- 3Scroll to the bottom and press “Open Anyway”You'll see a line saying our file was blocked, with an “Open Anyway” button next to it
- 4Enter your Mac password, then press “Open”It asks you to confirm once more — press Open and the installer runs as normal
Right-click → Open no longer works for .pkg files on newer macOS — you must use System Settings as in steps 2–3