The simplest way after the fact is to drag a good System Folder onto your OS X partition and then use System Preferences to designate it as Classic. You will be prompted to allow the OS to add certain files to the System Folder; agree. A ³good² System Folder is one that A) will boot your Mac B) is compatible with our version of OS X And the best way to make one is to install OS 9 onto a different disk or partition. -- Robert MacLeay On Thu, 25 May 2006 10:41:28 -0700, Jay Ruuska wrote: > This is a very good idea Robert. By the way, I have a few systems with > 10.2.8 on them and Classic needs to be installed. I doubt I will be able to > do any partitioning. What is the proper way to install OS 9 alongside a > pre-existing OS X install?