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When you use the Uninstall Kernel Extensions, there may be a problem with deleting some service files and folders. This happens because some programs, mostly antiviruses, can add kernel extensions that keep them and some files related to them from being deleted.
A kernel extension is a piece of software that is loaded into the most important part of an operating system. Kernel extensions can be used to add features or support for hardware that wouldn’t normally be in the kernel. Usually, a kernel extension can do things or get to parts of the operating system that regular software can’t.
In some operating systems, extensions to the kernel are called kernel modules or just modules. Most of the time, Kext files are kept in the Extensions folder. If you try to move such a file to the Trash, Finder will ignore the command to move the file. So, this article will show you how to get rid of the kernel extensions.
How to Uninstall Kernel Extensions
Safe boot
- Turn the Mac off.
- Safe Boot, by starting your Mac and immediately holding down the Shift key until you see the login screen.
- Pick a user and enter a password, as normal, at the FileVault login screen.
- Wait a long time for the Mac to boot into the Safe Mode Desktop.
Remove kernel extensions when FileVault is enabled
- Repeat the first two steps from the text above and go to the recovery mode → Terminal.
- Type in Terminal the next command:
csrutil disable - Press the Return key to disable System Integrity Protection.
- Restart your Mac in the usual way
- Find the kext file in Finder and remove it from there.
- Empty your Trash bin.
- Then re-enable the System Integrity Protection again. For this, again restart your Mac → use Command+R shortcut → open Terminal and this time type the
- Again restart your Mac.
What is Kext?
Kext documents are essentially Mac OS X drivers. Kernel Extension is what Kext means or what it stands for. Kext files “expand” Mac OS X’s core, which is the main part of the Mac OS, by giving your computer more information to run when it starts up. In a technical sense, Kexts are not really separate files. In fact, these.kext “files” are packed in a way that is similar to how.zip files are.
If you copy a.kext file to a Windows system, it will show up as a folder. Because Kexts are folders. If you right-click a Kext file and choose “Show Package Contents,” you can see what’s inside, just like you can with Apple’s.app files. Once you’ve put the Kext file’s data in, you can change the plist (settings) data and do other things if you need to. Sometimes, you need to change the whole content of the Kext files to enable certain graphics card Kexts or fix Kexts that aren’t working right. you can visit Apple support center for further help.
FAQs
On Mac OS X, most of the kernel extensions the system uses are stored in /System/Library/Extensions. Rather than a single file, a kernel extension (. kext) is a directory containing several files.
Most OS X applications are completely self-contained “packages” that can be uninstalled by simply dragging the application to the Trash. Applications may create preference files that are stored in the /Home/Library/Preferences/ folder.
On Mac OS X, most of the kernel extensions the system uses are stored in /System/Library/Extensions. Rather than a single file, a kernel extension (. kext) is a directory containing several files.
Should I allow kernel extensions?
Most OS X applications are completely self-contained “packages” that can be uninstalled by simply dragging the application to the Trash. Applications may create preference files that are stored in the /Home/Library/Preferences/ folder.