There is some really good anti-virus software available, which can greatly reduce the risk of getting a virus. The Norton Anti-Virus from Symantec is a great program for users with PCs running Windows. Virex from McAfee is a great program for users with Macs. The best way to safeguard against viruses is to just be cautious about downloading programs and accepting emails. If something seems at all suspicious, don't click on it. To go even further, stay away from downloadable programs from unknown sources and instead stick to programs from CDs.