You can make a difference in the Apple Support Community!
When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.
When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.
My iMac is having trouble starting enough and I have this lightning bolt running around the screen. What does that mean? I’m
iMac 21.5″, macOS 12.6
Do you have that iMac connected to another Mac using a Thunderbolt cable?
I ask, because that sounds like it is trying to startup in Target Disk Mode.
see > Transfer files between two Mac computers using target disk mode - Apple Support
Hold the power button for 10 seconds or until it turns off.
Then try starting up in Safe Mode.
My iMac seems to be having trouble starting. I have this lightning bolt running around the screen. How do I fix that?
