Diagnosis of hard drive or cable problems. The package includes testing, cloning of hard drives with bad sectors, creating bootable usb drives. http://scsc-online.com/Scannerz.html.
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Techtool Lite Alternatives
Techtool Lite is described as 'Run essential diagnostics, repair key macOS databases, and keep your computer’s internal drive healthy—all in a streamlined utility' and is an app in the os & utilities category. There are more than 10 alternatives to Techtool Lite for Mac, Windows, Linux, Homebrew and MS-DOS. The best Techtool Lite alternative is Mole, which is both free and Open Source. Other great apps like Techtool Lite are Disk Drill, Noah, DriveDx and OptiMac.