Install appropriate virus-prevention tools. You should actively check for viruses online, but periodically you should also use the off-line, trusted copies of the tools to scan your systems. This step is most effective if you perform it as part of the initial installation and configuration of the operating system. Train users in virus prevention and recognition techniques. 2 Train users to understand how viruses and other programmed threats propagate and what they can do to help prevent further propagation.
Many viruses manifest themselves in predictable ways.
Keep users apprised of new programmed threats and related intrusion scenarios. Update the tools as needed, especially when new viruses are discovered. Many virus-protection tools use a database of known virus characteristics. Vendors frequently release updated versions of those databases on a weekly or monthly basis. Ensure that your computers have the most recent versions.