TechTool Pro 4.1.2 Updater

Version 4.1.2
File Size 20.1 MB
Release Date: 5/26/2006
This updater will update TechTool Pro 4.0.x to version 4.1.2. You MUST have a previous version of TechTool Pro 4 installed on your machine in order to apply this updater. The updater is capable of updating the TechTool Pro 4 application that resides on the eDrive volume.
TechTool Pro 4 owners are eligible for upgrade pricing to TechTool Pro 8 by contacting our sales department at 707-304-5993 or by email to This email address is being protected from spambots. You need JavaScript enabled to view it. .


  • Improved Optimization progress bar status information display.
  • Fixed Mac OS X 10.3.x FireWire hard drive recognition issue in the Drives tests.
  • Fixed Protection, Diagnostic and SMART Setup timing issue.
  • Fixed Protection Setup and eDrive for volume names with Japanese characters.
  • Updates to Video Memory card information.
  • Addressed support for Mac OS Standard volumes in Volumes Structures test.
  • Added additional FireWire hard drive model support.
  • Updated existing PowerPC machine information in TechTool Pro 4 Reports.

Version 4.1.2 requires Mac OS X 10.3 or greater. PowerPC only.

For complete change list, see the ReadMe file.