If your Mac is running an older version of Mac OS X, and doesn't support the current version of TechTool Pro, we can find the right version for your Mac.
1) Your model of computer (ie MacBook, iMac, MacMini etc.)
2) Your Mac's processor (ie Intel Core i7 3.0 GHz)
3) Amount of RAM installed (ie 8 GB)
4) Version of OS X installed on your Mac
Our tech support staff will provide you with the information on the appropriate version of TechTool Pro that will work with your older Mac and how to obtain a copy of that older version.