When i have tried to use win7 builtin image utility, it takes too long and gives me an error message.
I also read that it is not the best and has some issues. though honestly after formatting and reloading win 7 this time, i have not tried the same.
Also, as I understand it system Image is different from data back up.
I mean that i create a system image at start when the system is new and I have loaded all my programs. And to keep my data safe, i need to take a backup say every week or so.
But as i go on, i would tend to install some programs and unless i retake a system image i will loose these newly installed programs incase of system crash.