It is for that reason that it is called “Safe” mode. In addition, some features might not even work at all. Running your iMac in Safe mode may require patience because it is a bit slower than the normal mode. You may have to start by booting your iMac in Safe Mode. If the first two solutions don’t work, you might need to get a bit technical with your iMac. If prompted for a firmware password, enter it first.Select which startup disk you would like your iMac to boot from.This will start up your iMac with the Startup Manager. Press the Option and Power keys together.Connect them one by one to find out which one is causing the problem.Īnother solution you can try is to use the Startup Manager. If your iMac restarts without any problem, then it is likely that the problem is with the peripherals.Disconnect all unnecessary external peripherals that are currently connected to it.Make sure your iMac is completely shut off.For a detailed guide on how to do this, follow these steps: Disconnect all external peripherals that are connected to it, except those that are required to boot the system. One of the easiest solutions for iMac startup problems is to shut down your machine. Take note that the Target Disk mode is supported only by FireWire and Thunderbolt, which means it does not run on Bluetooth, Ethernet, USB, or WiFi.Īs mentioned, there are many ways to solve problems with iMacs stuck on the loading screen.Next, use the working iMac to copy the data from the problematic iMac.

You can do this by choosing the Target Disk Mode. If you have another iMac and both have Thunderbolt or FireWire ports, connect them so that the other one can be used as an external hard disk.Follow the on-screen prompts to create a backup on your external hard disk.

Once the macOS Utilities screen shows, select Disk Utility.

To do this, press the CMD + R shortcut while pressing the Power If a Time Machine backup is available, press the Option key upon startup.

Attempt to boot into your iMac’s Recovery Partition.

Simply prepare an external hard drive to save your files to and then follow these steps: Boot iMac into Recovery Partition There are many ways to back up an iMac that does not boot up.

When it comes to boot failure issues, the first step you should take is to secure your files and data. With a backup handy, you can conveniently restore your machine’s settings in case something comes up. If you want to resolve these iMac startup problems, make sure that you back up your data first before trying your available solutions. They are indications that something is wrong with the hardware or the operating system. About Outbyte, uninstall instructions, EULA, Privacy Policy.įor tech junkies, startup problems are serious.

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