Disable Network Access Disable network access to your machine. By disabling the network access, thereby isolating your machine from other systems, you can protect against virus contamination, and prevent outside users from gaining unauthorized access to your assembly drive. On Macintosh systems, it also protects against the unintentional resolution of aliases on other machines. Network access can be easily disabled by either preventing the network software from loading up at run time, or physically disconnecting the network cables from the machine. On Macintosh systems, users can simply turning off File Sharing via the Sharing Setup Control Panel, and AppleTalk via the Chooser .
Many viruses infect program by adding code.
These can be detected if you know the correct size of your program files. Remember that files can't be checked for viruses while compacted. Maintain a list of the documents or programs that will ship on your disc in compacted form, so that these can be expanded and checked. Optimize the Assembly Disk When writing files to hard disk, the computer maximizes the space available by filling in any empty spots. As files are added, modified, moved, or deleted from the hard disk, individual files are often divided into several fragments.