Mac Starts to a Blank or Black Screen
Troubleshoot a Mac that powers on but does not display the login window or desktop.
Troubleshoot a Mac that powers on but does not display the login window or desktop.
Symptoms you may notice
- The feature or device does not behave as expected.
- The issue returns after retrying the same action.
- You may see an error message, warning, delay, or missing response related to this problem.
Before you begin
- Connect the device to reliable power if battery level is low.
- Save open documents and close any application that contains unsaved work.
- Write down the exact error message or take a screenshot before changing settings.
Step-by-step troubleshooting
Increase brightness and check external displays
Raise display brightness and disconnect docks, adapters, and extra monitors. If using an external display, verify its input source and cable.
What you should see: The startup image should appear on the primary display.
Force a clean restart
Hold the power button until the Mac turns off, wait 10 seconds, then turn it on again with only power connected.
What you should see: The Apple logo and progress bar should appear.
Start in Safe Mode on Apple silicon
Shut down, hold the power button until startup options load, select the startup disk, hold Shift, and choose Continue in Safe Mode.
What you should see: The login screen should indicate Safe Boot.
Start in Safe Mode on Intel
Restart while holding Shift until the login window appears. Sign in; you may be asked to sign in twice.
What you should see: Safe Boot should load using minimal extensions and caches.
Use macOS Recovery
If Safe Mode does not load, start macOS Recovery using the method for your Mac and open Disk Utility. Run First Aid on the startup volume without erasing it.
What you should see: First Aid should finish without an unrepairable disk error.
Reinstall macOS without erasing data if needed
From Recovery, choose Reinstall macOS only after confirming the startup disk is visible and you have an appropriate backup. A standard reinstall is intended to preserve user data but backup remains important.
What you should see: macOS should reinstall system files and return to the login screen.
Confirm the problem is resolved
- Repeat the action that originally failed and confirm it now completes normally.
- Restart the affected application or device once more and verify the fix remains in place.
- Confirm that no new warning or error message appears during normal use.
If the problem continues
If none of the steps resolve the problem, stop making additional changes and contact technical support. Provide the exact error text, screenshots if available, the device model, operating-system version, and a list of the steps already completed.