Antivirus, as the name itself tells the entire story, is burgeoning software which suitably adapt to the platform to which it is attached. This a dynamic hefty code which existed only to eradicate or mitigate the effect of Virus on your system files.
Most probably, virus are the faulty codes which very well adapt to the executable files and other system files stored onto your system. Hence, virus may have very serious issues relating to your disk files and application files too. Viruses may lead to various malfunctioning; corrupted disk data, theft of personal data, deletion of contacts, file delete, CPU time consumption, abrupt filled memory space, or even display of unethical messages etc. Viruses can modulate in the forms like Trozan Horse, Spam, Spyware, Phishing etc.