TechTool Pro is a full-featured utility program containing options for testing and repair, maintenance (including disk defragmentation), and data recovery. All it takes is one click of the mouse to perform a comprehensive suite of tests on your computer's hardware and attached drives. TechTool Pro does it all. There is no need to purchase additional software to keep your computer performing at its best. In fact, it's so good that Apple includes a copy of its sibling, TechTool Deluxe, in its AppleCare Protection Plan.
Diagnostics and Repair Use the Check Computer feature to perform a complete diagnostics check of the computer and the Macintosh formatted hard drives with one click of the mouse. This includes a SMART test of the computer's built-in hard drive to check for impending drive failure, a test of the computer's available RAM, a check of the disk directories, and much more. If problems are found, advice is provided on how to proceed to repair the problem. Use Check Computer regularly as a part of a preventive maintenance program.
* G4, G5 Macs, 867 MHz or faster; All Intel-based Macs.
* Mac OS X 10.4.9 or greater, including Mac OS X 10.7 'Lion'.
* Mac OS X 10.5 or greater for eDrive creation on active startup volume.
* 512 Megabytes RAM or higher.