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Mac OS 8.6 CD Mac OS 8.6 Support
 Step-by-step troubleshooting with the Knowledge Base guided search.
 Join the Discussions about Mac OS 8.6
 Search the Knowledge Base.

About Your Mac OS 8.6 Operating System
This product support page has been created to provide support to customers with Mac OS 8.5 or Mac OS 8.6 update installed. Please be aware that Mac OS 8.6 is no longer the state of the art Macintosh operating system. Learn about the many features of the most current Apple software applications, including the latest Mac operating Systyem Mac OS X.

Mac OS 8.6 is free and can be downloaded to update a Macintosh computer running Mac OS 8.5. It cannot be installed as a stand alone Macintosh operating system. If you have Mac OS 8.5 installed, or you have the Mac OS 8.5 CD, you can download the single or multiple file version of Mac OS 8.6 Update here.

Mac OS 8.5 is no longer available for purchase, please go to the Apple Store to purchase the most recent Macintosh Operating System.

Locate manuals for Mac OS 8.6.

Keep up with Mac OS news and information by subscribing to Apple eNews.



Before You Upgrade to Mac OS 8.6
Downloads  Software Requirements: Read About Mac OS 8.6 Update and Mac OS 8.6 Late-Breaking Tips
 Mac OS 8.5 users learn "What's New" with Mac OS 8.6, published in an easy to read format on the Apple Support Knowledge base
 Apple "Help" requires QuickTime be installed.
 Hardware Requirements: Mac OS 8.6 can be installed on any Macintosh that originally shipped with a PowerPC processor and has at least 24 megabytes of physical RAM.
 Be sure to check the System Requirements to make sure your computer is ready.


Important Installation Information
Mac OS 8.6 CD
 Read the Technical Article: Installing Mac OS 8.6
 Read the Technical Article: Performing a Clean Install
 Read the Technical Article: Folders Deleted by Installer before running the Mac OS 8.6 installer.
 Read the Technical Article: Error Installing With Norton Crashguard Enabled before running the Mac OS 8.6 installer.
 Read the Technical Article: The Installer Cannot Repair Your Hard Disk before running the Mac OS 8.6 installer.
 Read the Technical Article: Installer Cannot Update the Hard Disk Driver. before running the Mac OS 8.6 installer.
 Other Mac OS 8.6 Installation issues.
 Search the following Knowledge Base articles describe known incompatibilities with Mac OS 8.6: "Desktop Printer Extension is incompatible" Message, and Troubleshooting Unreliable Modem Connections
 Check Version Tracker's Mac OS Updates page for third party software updates you may need for Mac OS 8.6 compatibility.