System Shared Components

Launch Daemons Launch Daemons is the macOS folder that stores third-party system daemon property lists used by launchd to start background services for the whole Mac. /Library/LaunchDaemons

Printers The /Library/Printers folder stores macOS printer drivers, PPD files, and related resources used to add and use printers on the Mac. /Library/Printers

Extensions Extensions stores kernel extensions and related system add-ons that let macOS load hardware drivers and low-level system components. /Library/Extensions

Library Privileg Mac Can I Delete Library Privileg stores privileged helper executables that trusted macOS apps install to perform administrator-level tasks. /Library/PrivilegedHelperTools

Fonts The /Library/Fonts folder stores fonts installed for all users on a Mac, making those typefaces available system-wide to apps and user accounts. /Library/Fonts

Frameworks Frameworks in /Library/Frameworks store shared code libraries that macOS and installed apps use to run features and avoid duplicating components. /Library/Frameworks

Audio The /Library/Audio folder stores shared audio resources used by macOS and installed software, such as plug-ins, MIDI content, and system-wide sound data. /Library/Audio

Relocated Items Relocated Items is a macOS folder in /Users/Shared that stores files moved aside during a system upgrade when they could not stay in their original locations. /Users/Shared/Relocated Items

File The /.file item is a hidden file at the root of your Mac’s startup volume, where dotfiles are commonly used for system or tool-specific state. /.file

Library The /Library folder stores macOS system-wide resources, settings, support files, and shared data used by Apple software and installed apps for all users. /Library

System The /System/iOSSupport/System folder is part of macOS system content used to provide shared Apple runtime components and compatibility resources. /System/iOSSupport/System

Library Mac Can I Delete Library at /System/Library stores core macOS frameworks, services, extensions, and shared resources used by the operating system. /System/Library

Sbin Sbin at /usr/sbin is a macOS system folder that stores command-line administration tools used by the operating system and advanced maintenance tasks. /usr/sbin

Extensions Extensions in /System/Library/Extensions are macOS system-level kernel extension components used to provide low-level hardware and operating system functionality. /System/Library/Extensions

Keychains Keychains stores shared macOS keychain databases in /Library/Keychains for system-wide passwords, certificates, and trust settings used by macOS and apps. /Library/Keychains

Sbin Sbin is the macOS system directory that stores essential administrative command-line tools used for boot, recovery, repair, and core system management. /sbin

Bin Bin is the top-level macOS folder that stores core Unix command-line executables used by the system and Terminal sessions. /bin

Dev The /dev folder is a core macOS directory that contains device files used by the system and command-line tools to communicate with hardware and virtual devices. /dev

Usr The /usr folder stores Unix command-line tools, shared libraries, and other macOS components used by built-in utilities and many installed apps. /usr

Private The /private folder is a core macOS filesystem location that holds system directories such as /etc, /tmp, and /var through Unix-style path links. /private

Driver Kit DriverKit is a macOS system folder that supports user-space device drivers and related system extension components used by hardware and low-level services. /System/DriverKit

Metadata ~/Library/Metadata stores Spotlight and Core Spotlight indexing data that macOS uses to find files, app content, and search results faster. ~/Library/Metadata

Microsoft Excel Microsoft Excel is a spreadsheet application for Mac that helps you organize data, calculate results, build charts, and analyze information in workbooks. /Applications/Microsoft Excel.app

Applications The /Applications folder is the standard macOS location for apps installed for all users, making it the main place to launch, organize, and remove applications. /Applications

System The /System folder contains core macOS components that the operating system uses to start, run built-in features, and support essential system services. /System