To use SFC, type sfc.exe from the command prompt. SFC is not a virus security feature, but it helps reduce the risk of spreading viruses under Win2000. Prevention includes creating user awareness, implementing hygiene rules, using disk authorization software or providing isolated 'quarantine' PCs. Detection involves the use of anti-virus software to detect, report and disinfect viruses. See the Simply the Best Anti Virus page for programs.
Containment involves identifying and isolating the infected items.
Recovery involves disinfecting or removing infected items and recovering or replacing corrupted data. The first step in detecting a virus in a file is to search for a unique piece of its code or of its data within files. This method is used for simple viruses. Although the string search technique is not considered foolproof it is still the basis of most anti virus programs. This technique consists of determining whether a file has been infected by observing certain parameters that commonly appear in infected files.