How it works The changes in version 3.01 are obvious as soon as you launch the application. Two windows appear. These two windows replace the Simple, Standard and Expert selections in the Interface menu of the previous version. Fortunately, you can set TechTool Pro's preferences to open one or the other of these windows when you launch the application. Most users will be happy using the MultiTester which allows you to specify which of the most often used tests you wish to run.
Some tests take quite a while to complete.
An intensive test of your RAM might take several hours. MicroMat included a new Auto-Pilot feature which enables you to select any number of tests and the sequence in which they are run. You can launch the Auto-Pilot and TechTool Pro will run the selected tests without supervision. It's important to understand why TechTool Pro takes longer to defragment a drive than do other HD diagnostic applications such as Norton Utilities. This is fast, but if you should experience a crash or power failure during optimization, you could lose some or all the data on your drive.