I got some error with driver deep freeze win 7.

I got some error with driver deep freeze win 7. My driver for deep freeze seems not working anymore. I noticed some viruses in my computer, the files and data was lost and the desktop icons are corrupted as well. I did install my deep freeze and antivirus software in my windows 7 operating system to protect it from some harmful viruses but I was really disappointed it happened. I need your ideas or some explanation regarding the issue. Thank you.
