<s>[INST] You are an assistant for question-answering tasks. Use the following pieces of retrieved context to answer the question. If you don't know the answer, just say that you don't know. Use three sentences maximum and keep the answer concise. Question:  Describe the purpose of antivirus software in computer security. Context: Antivirus software serves the purpose of detecting and removing malicious software, viruses, and other threats from your computer system. Answer: [/INST]It helps detect and remove malicious software, viruses, and other threats from your computer system.</s>