Maintenance 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. So you can run a newer OS just not the latest depending on what you currently have.Īpple removed all of the 32-bit OS code in Mountain Lion which is why you can't run it. Maintenance is an operating system maintenance and cleaning utility for macOS that you can use to perform miscellaneous tasks of computer maintenance: run periodic scripts rebuild the databases delete application, font, and system caches and more. However, although it has a 64-bit processor, it has a 32-bit EFI and is not capable of booting into 64-bit mode. This system can run the last version of OS X 10.7 'Lion' if upgraded to at least 2 GB of RAM. The Core 2 Duo models can in fact run Lion (10.7.x) sorry to say it can't run Mountain Lion.

The older Core Duo's CPU is not 64-bit clean which is why they can't run Lion or Mountain Lion However, it cannot boot in 64-bit mode nor does it support 'OpenCL'.

This system can run the last version of Mac OS X 10.6 'Snow Leopard'.

The Core Duo group can only run up to Snow Leopard:.

Verify your model going to EveryMac - Lookup plugging in the last three digits of your system. While Apple's TN imply this model won't run Lion or Mountain Lion there is in fact two versions of this model group the older Core Duo and the newer Core 2 Duo.

Maintenance for mac os x 10.6