Sharing files through the use of diskettes and e-mail attachments or downloading files from the Internet are the most common forms of spreading Malicious Code. It is your responsibility to scan all outside files using current anti-virus software.
Your system may contain a virus even if it appears to be virus free. Viruses can remain hidden and may show up months later to infect your system. For this reason, it is essential that you scan your system daily using current anti-virus software.