With Mac OS 7.6, Apple dropped support for writing to the MFS format. Mac OS 8 dropped MFS support altogether. However, any Macintosh with a built-in floppy drive can use Disk Copy 4.2 to make 400K/800K disks from images and Disk Copy 6.3.3 to make 800K disks from images, even in Mac OS 9. For more on this, see Sonic Purity. Mac OS 9.x, based on Mac OS 8 was the final product based on the classic MacOS architecture. Like previous version, it lacks true protected memory or pre-emptive multitasking. MacOS 9 was abandoned in favor of of the Unix-ish NextStep/Openstep based Mac OS X. Running MacOS 9 requires a supported Power PC based Macintosh (see the compatibility matrix), or the following. All the files we're looking for in the Mac OS CPU Software package are simply later versions (and a few new files) of the ones in the standard OS 9.2.2 Install: Extensions and suchlike for monitors, video, sound, DVD, keyboard, and a few other things, and the Mac OS ROM file of course.
OnyX
The System Folder in Mac OS 9 and Earlier. Most every Mac has a special folder with a blue Mac OS face on its front, located on one of the hard drives. This folder, called the System Folder, contains all of the system software's files and programs. 1 Download Mac OS X Snow Leopard. Mac OS X Snow Leopard (version 10.6) is the seventh major.
OnyX is a multifunction utility that you can use to verify the structure of the system files, to run miscellaneous maintenance and cleaning tasks, to configure parameters in the Finder, Dock, Safari, and some Apple applications, to delete caches, to remove certain problematic folders and files, to rebuild various databases and indexes, and more.
OnyX is a reliable application which provides a clean interface to many tasks that would otherwise require complex commands to be typed using a command-line interface.
WARNING:
There is a specific version of OnyX for each major version of the operating system.
Use the correct version, and don't try to use a version intended for an earlier operating system.
OnyX 4.0.0 for macOS Big Sur 11
Requirements: Intel-based Mac or Mac with Apple silicon using macOS Big Sur 11.3 or later.
OnyX for macOS Monterey 12 will be available about 15 days after the official release of macOS Monterey.
Please wait...
OnyX 3.8.7 for macOS Catalina 10.15
Requirements: Intel-based Mac using macOS Catalina 10.15.
OnyX 3.6.8 for macOS Mojave 10.14
Requirements: Intel-based Mac using macOS Mojave 10.14.
OnyX 3.4.9 for macOS High Sierra 10.13
Requirements: Intel-based Mac using macOS High Sierra 10.13.
OnyX 3.3.1 for macOS Sierra 10.12
Requirements: Intel-based Mac using macOS Sierra 10.12.
OnyX 3.1.9 for OS X El Capitan 10.11
Requirements: Intel-based Mac using OS X El Capitan 10.11.
OnyX 3.0.2 for OS X Yosemite 10.10
Requirements: Intel-based Mac using OS X Yosemite 10.10.
OnyX 2.8.9 for OS X Mavericks 10.9
Requirements: Intel-based Mac using OS X Mavericks 10.9.
OnyX 2.7.4 for OS X Mountain Lion 10.8
Requirements: Intel-based Mac using OS X Mountain Lion 10.8.
OnyX 2.4.8 for OS X Lion 10.7
Requirements: Intel-based Mac using OS X Lion 10.7.
OnyX 2.4.0 for Mac OS X Snow Leopard 10.6
Requirements: Intel-based Mac using Mac OS X Snow Leopard 10.6.
OnyX 2.0.6 for Mac OS X Leopard 10.5
Requirements: PowerPC-based Mac or Intel-based Mac using Mac OS X Leopard 10.5. OnyX only runs from an administrator account.
OnyX 1.8.6 for Mac OS X Tiger 10.4
Hide Folder Mac Os
Requirements: PowerPC-based Mac or Intel-based Mac using Mac OS X Tiger 10.4. OnyX only runs from an administrator account.
OnyX 1.5.3 for Mac OS X Panther 10.3
Requirements: PowerPC-based Mac using Mac OS X Panther 10.3 with BSD subsystem. OnyX only runs from an administrator account.
OnyX 1.3.1 for Mac OS X Jaguar 10.2
Mac Os 9 Download
Requirements: PowerPC-based Mac using Mac OS X Jaguar 10.2 with BSD subsystem. OnyX only runs from an administrator account.