Check the box next to to allow it to clean system-level files .

: You must use the version specifically for your OS. Visit the Titanium Software downloads page and select the macOS Monterey 12 version (OnyX 4.2.1 is the latest stable release for Monterey, though 4.1.9 is also common) .

: OnyX will ask for your Administrator password to perform its tasks. It will also offer to verify the structure of your startup disk; this is a recommended one-time check for new users . 2. Core Maintenance Tasks Download OnyX for Mac | MacUpdate

This guide covers , the specific version developed by Titanium Software for macOS Monterey 12 . OnyX is a powerful, free utility designed to maintain system health, clear deep-seated caches, and unlock hidden macOS settings without using complex Terminal commands . 1. Installation and Initial Setup

: Open the downloaded .dmg file and drag the OnyX icon into your Applications folder . Grant Permissions :

: Go to System Preferences > Security & Privacy > Privacy . Select Full Disk Access and click the lock to make changes.