GoBack saves a record of important changes to your hard drive such as the Windows Registry, etc. If your system gets screwed up by a botched installation or spyware, etc., then GoBack allows you to 'go back" to a previous healthy state of your system.

It works well with Norton's System Works, but is incompatible with some software such as RAID and dual-boot software, and can be confused by changes to the date setting of your system clock.

I used to use Norton's System Works and GoBack, but now (my latest system has RAID), I use Norton 360, which is like an upgrade of System Works, and I like it.