1, do not use the original floppy disk or other media to boot the computer, to protect the system and other original disks. 2, do not use foreign floppy disks or other media, foreign floppy disks or other media must first check the poison before use. 3, completes the system software, application software backup, some important files or data on a regular basis for data file backup, for system recovery. 4, the use of computers to do special plane, especially some work machine, to avoid the use of pirated software, such as game software, etc., in order to reduce the chance of being infected by the virus.