Resolving Kernel Panic Error in Mac

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MacOS Sierra-Kernel-Panic-Error

Kernel Panic is a system-wide crash that brings entire Mac OS at halt without any warning. When this error occurs, it results into screen dimming and you may lose any unsaved work. You’ll be forced to restart your computer by holding down the Power key for several seconds until your MacBook restarts.

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Reset NVRAM

NVRAM is a type of non-volatile memory which retains memory contents even when power supply is no longer being available. A volatile memory, on the contrary, immediately loses memory contents as soon as a power supply is interrupted. It stores data related to prominent Mac operating system functions, such as, speaker volume, display resolution, start-up disk, time zone, and recent Kernel Panic logs. Failure to load this information will cause Mac to reset the default values. You might want to reset the NVRAM in order to get rid of the Kernel Panic error.

  1. Restart your Mac. To do so, click the Apple menu, select Restart.
  2. Press and hold the Command + P + R keys together.

Reset SMC

SMC stands for Sudden Motion Sensor. It controls the functioning of your power button, display lid, battery management, thermal management, Sudden Motion Sensor (SMS), ambient light sensing, keyboard backlighting, Status Indicator Light (SIL) management, battery status indicator lights, and various other elements. Problem with the functioning of SMC may cause Mac to unexpectedly crash with a Kernel Panic.

Unplug all peripheral devices externally connected to your laptop. This may include scanner, printer, UBS mouse, USB Wi-Fi, AC Power, and so on.

  1. Press and hold the Power button for 15 seconds.
  2. Disconnect the power cord, wait for 20 seconds and plug it again.
  3. Turn on MacBook after a while.

Use the Safe Boot

Apple has offered the Safe Boot functionality ever since the Jaguar OS X. It is a key troubleshooting method that boots the operating system with minimal number of system extensions, preferences, and fonts. Safe Boot, much similar to Safe Mode in Windows, prevents loading of incompatible apps, faulty drivers, damaged font installations, corrupt preference files. If needed, it’ll also check-up disk errors, clear-up the Dynamic Loader cache.

  1. Restart your Mac.
  2. Press and hold the Shift key during the pre-boot interval.

Uninstall Conflicting Apps

If you’re using Antivirus and VPN software, uninstall them. Conflicts with these apps can cause serious runtime issues.

  1. Click the Apple menu.
  2. Select App Store from the menu.
  3. Click Updates.

Clear the Cache

Cache is the central location that contains downloaded files that might be needed again. The large cache contents could take up huge disk space; ultimately result in sluggish MacBook performance. When your operating system runs into low disk space issue, it may crash. Clearing-up the cache might help.

  1. Open up the Finder.
  2. Press Command + Shift + G keys together.
  3. Navigate to the following directory:
    • ~/Library/Caches
  4. Select all and delete all files from the Caches sub-folder.

Use Time Machine Backup

Ever since Mac OS X 10.5 Leopard, the Time Machine facilitates the easiest way to back up your entire Mac or individual files. If you’ve generated a recent backup prior to the Kernel Panic error, connect the USB Drive or External Hard Drive containing your backup and then perform the following procedure:

  1. Reboot your MacBook.
  2. Press the Command + R keys simultaneously.
  3. Choose Restore from Time Machine Backup option.
  4. Click Continue.

Perform Hardware Diagnostic

Hardware Diagnostic allows troubleshooting problems caused by faulty or incompatible devices. Perform a hardware diagnostic to check for such issues.

  1. Turn off your Mac.
  2. Unplug all peripheral devices.
  3. Power on your Mac.
  4. Press D key and hold it for a while until a language selection screen appears.
  5. Select English or your preferred language.
  6. Follow the hardware diagnostic wizard.
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