Hello all, I'm a new member here. I'm using Windows 7 ultimate 32 bit in my Intel duel core 3 Ghz with Intel g41 express chipset, 2 GB DDR2 RAM, 1 TB Hitachi internal HD. There are some movie files with different extensions or folders containing those files on selection of those files or folders or while trying to play those files my computer hangs instantaneously and there remain no options except to restart my computer. Someone may say that I've virus in my computer but I can say that I've checked those files on other computer where it doesnt create any problem. I'm giving a snap shot of the message gives while my computer hangs.