Shut down your Mac, reconnect a peripheral, and then restart your Mac. Try opening the same apps that were in use at the time of the panic.
Troubleshooting Mac OS X Kernel Panics
If everything seems OK, then shut down and connect the next peripheral. Continue the connect-and-test process until all your devices are reconnected. Safe Mode keeps startup items from being loaded, as well as third-party kexts and fonts other than those used by the system. After you disable startup items, use Font Book to validate your installed fonts. If any fonts come up with errors, use Font Book to disable the indicated fonts. Go ahead and restart normally. If no kernel panic occurs, add one of the startup items back, then restart.
Repeat and test each startup item until all have been restored. You can use Apple diagnostic routines to test your Mac. You can use the Recovery HD partition to perform the reinstall. Reinstalling the OS should replace any corrupt system files, while retaining user data and apps. For more Rocket Yard guides and tricks, please visit our Tech Tips section. Name required. Email required. Leave this field empty. Notify me of follow-up comments by email. Notify me of new posts by email.
I just partitioned by 1T hard drive on my Mid iMac. I downloaded and installed macOS High Sierra on my 2nd partition. My 1st partition runs os I also installed 8gm s in the top slots and put the original s in the lower slots for a total of 12GB. When High Sierra finished installing on the new partition in booted into it with no problem. I then tried to restart with option pressed and got a black panic kernel display. I cannot boot back into OS What have I done as this is happening every time I try.
How to solve Kernel Panic error
Could the ram upgrade have anything to do with this? Help, Thx, James. Great article! After years of suffering from unexpected shutdowns and kernel panic issues until finding out that the problem is hardware related, which involved replacing a faulty capacitor. Beware Adobe Flash, which may cause freezes, kernel panics and random reboots on some Mac models.
Really obnoxious. Posted on Jun 29, 2: I didn't even need the bootable flash drive and used Option-Command-R when starting up to download and install High Sierra which was a lot easier than I thought. This support page was most helpful: Reinstall macOS - Apple Support. In terms of the Mojave Public Beta, I had not used it and was in the process of installing before it stalled.
I left it for more than 8 hours and was making no progress. I got concerned so did a hard shut down.
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Then thats when my iMac would not start up and got the kernel panic. Posted on Jun 29, 8: Jun 29, 8: You should try each, one at a time , then test to see if the problem is fixed before going on to the next. If you get here without success then make an appointment at the Apple Genius Bar for service. You used a method that restores the version that was previously installed meaning you were using a macOS Beta version. If your flash drive has a functioning High Sierra installer on it then follow this process:.
Page content loaded. Jun 29, 5: I have a bootable usb flash drive with high sierra. How can I use that to install? Communities Contact Support. Sign in. Browse Search.
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Ask a question. User profile for user: Desktops Speciality level out of ten: I was then greeted with an error: Your computer restarted because of a problem.
"your computer restarted because of a problem" over and over again | MacRumors Forums
Press a key to continue starting up. More Less. Question marked as Solved User profile for user: Thanks for that information. View answer in context. Helpful answers Drop Down menu. Kappy Kappy.
What is a Kernel Panic on Mac and How to Fix it?
Be sure to backup your files before proceeding if possible. Shutdown the computer, wait 30 seconds, restart the computer. Disconnect all third-party peripherals.
Start the computer in Safe Mode. Test in safe mode to see if the problem persists, then restart normally.