Data execution prevention means really virus attack

[Sachin Naik]

1 year back I was infected by some viruts because of which I formatted only my C drive and later I had no problems but just now I have observed that my windows displays a message data execution prevention in which windows blocks the execution of some program, I was only running a 3 scans on my pc at that time and suddenly this message got displayed, so till now this message has appeared thrice but I don