With all these new technologies coming out for instant recovery and virtualization I wanted to do a simple test on a program which has been talked about a lot, FD-ISR. I wanted to see how well this program protected itself as far as its rescue area is concerned simply because if it ever got breeched or altered or messed with, than the program would simply fail to work. Here I used a simple low level tool created by Julie Lau, sector editor v1.05. Before using this tool I successfully installed and created rescue area and successfully booted to it several times and having everything restored back to its original state, after making little changes like changing desktop wall paper and deleting program folder(s). Now I know that the program is working I ran sector editor and did a simple sector fill of my C: after doing this this is what I saw, Pre-Boot was disabled, so I figured maybe it could still work if I reboot, did the reboot and got a Error loading operating system black screen. Scary to know that there are current malware out in the wild that have the ability to do sector fills like Julie Lau's sector editor. I think it should'nt be this easy to hurt this program anyone else wanna comment.