Again talk about internal factors, document classification system and personal files apart, not all the files are placed in a disk, especially inside the external file is best not to put it in the system tray, so if your external file once you are infected with the virus can affect the system disk, which affects the entire operating system
Note That Backing Up the System
Note that backing up the system, system backups on a regular basis, once the problems with your system at one time, such as a virus, System Restore can quickly repair your system restore to that point in time you backup system, greatly reducing your losses also protects your computer.
Prevention of computer virus, computer viruses, harmful, it can clog up network, memory, damage to the system, to steal user information, and so on, so while you use your computer to do effective prevention work, below is the authors think of preventive measures and precautions.Regular Clean Up Disks and Defragment the Hard Disk
Regular clean up disks and defragment the hard disk, the disk is like a warehouse, warehouse on what, is not convenient to access, access speed is slow, so regular cleaning disks and defragment the hard disk enables disk access speed. System with a floppy disk fragment reorganization tool, developing Web Services Programs-Accessories-System Tools-Disk Defragmenter program