Human: How to prevent a computer virus from spreading? Assistant: 

1. Install and regularly update anti-virus software on your computer to help prevent and detect malicious software.
2. Avoid clicking on links, attachments, or pop-ups from unknown sources.
3. Be aware of phishing emails that may contain malicious links or software.
4. Always back up your important data on a secure server or device.
5. Implement firewalls and other security measures to help protect your computer from external threats.
6. Implement security updates for any software you use that may contain vulnerabilities.
7. Restrict who has access to your computer, including remote access.