Press and hold Shift+Option+Command+R (hold these buttons until a spinning ball is displayed) ī.Reinstall the initial version of macOS on your device from the Internet During your Mac is restarting, you can do one of the following:Ī. Click on the Go tab and choose the Utility option.Ĥ. Once the Apple logo appears on your display you can release the Shift key.ģ. Press and hold the Shift key immediately after starting or restarting your Mac. This way, it could help you with the blue screen.ġ. If you start your Mac in Safe Mode, macOS will only load the files and programs it needs to run. In case the problem remains, let’s try another way. Turn off your Mac and let it shut down completely.ĭid it help to resolve the annoying blue screen? Then the problem was in the peripheral.Unplug all wires connected to your Mac (even the power cable).The problem with the peripheral can cause blue lines on the Mac screen. How to Fix Blue Screen on Mac? Solution #1: Shut Down your Mac and Disconnect All Peripheralsīegin with disconnecting everything connected to your Mac (for example, mouse or keyboard). Some specific apps are not working properly.A problem with a peripheral device connected to a Mac device.Let’s figure out what is the reason for the blue lines on the Mac problem. We offer you 5 methods to resolve the blue lines on the screen. There is a way to fix it, and not even one. The main point is that your data is safe. For instance, you might see a half-blue screen or screen with lines. There could be a variety of forms why you might be facing this problem. The Mac blue screen of death is rather a rare issue, though there is no need to panic!

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