TechTool Protection - Reengineered to better protect your Mac TechTool Pro 9 includes the option of installing a system preference pane to keep watch over your Mac. All of that, wrapped in an entirely new interface. Check Computer - Now you're in control Check Computer is a handy way to tell TechTool Pro to run the entire suite of tests to give you the best possible snapshot of your Mac's health. Sometimes, though, it's nice to be able to leave tests out, or to skip certain drives. Using the new configuration panel, you have total control of the Check Computer suite.
From Micromat: TechTool Pro is one of the most robust hardware diagnostic tool available for Macintosh. Techtool Pro 12 takes advantage of the latest technologies introduced with the release of macOS
How to run a Surface Scan on your Mac using Micromat's TechTool Pro Hard Drive Utility
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