If there's one thing missing in Macs it's a system restore function to completely restore a bug free configuration of your Mac after a major problem hit. Deep Freeze is an application that will do just that, enabling you to protect and preserve clean computer configurations. No matter what changes you make to your Mac, you can simply restart to eradicate all changes and reset the computer to its original state. The program is useful for anyone who has suffered software conflicts, operating system corruption and virus attacks.

After the simple installation procedure, you are asked whether you want to activate Deep Freeze, which will run a quick scan to “freeze” the computer in that state. You can then use the computer as you would normally but every time it is turned off, it will be returned to its original state. If at a later date you decide you want to make a permanent change you can temporarily disable Deep Freeze. The positive side of Deep Freeze is that it doesn’t impede the use of your computer in anyway. You can mess around with your Mac as much as you want, installing and reinstalling programs and even deleting essential Windows files without worrying about the consequences. The downside is that if you forget to deactivate it, any work you’ve done or any essential changes you have made will be lost for good. It’s therefore advisable to save essential files or documents on an external drive when Deep Freeze is activated. You can also save to a special “thawed” section of your hard drive that is exempt from restoration.

Whilst useful for those who share a computer or administer a network of computers, Deep Freeze is somewhat impractical on a lone Mac. However, if you like to save all your data to external sources, it’s a pretty solid assurance that your Mac won’t be rendered useless by a major crash. Deep Freeze is currently available in two editions for Windows, Mac OS X and Windows Server with a Linux edition in the pipeline.