Hello,
Can someone recommend me a good free roll back software? I don't need backup software. I need a roll back tool to test new software. I used to use the Comodo time machine. CTM is dead. thanks
With Mac OS X you can use backup software to roll back to a previous state, especially with Time Machine. That is one of the reasons it was introduced.
Everyone needs a backup. Whether you do it manually or use software to do it for you is up to you.
As already said, if you did use OS X's Time Machine backup software, you would be able to "roll back" using that.
However, the need to "roll back" the entire drive is much less on OS X than on another well-known OS.