Install and regularly update antivirus and anti-malware software. Use strong passwords and two-factor authentication. Don’t click on suspicious links or attachments. Avoid using public Wi-Fi networks when possible. Back up your data regularly. Use a secure browser and keep it up to date. Use a firewall to protect your computer from unauthorized access. Disable automatic file sharing. Disable Remote Desktop Protocol (RDP) if you don’t need it. Use encryption to protect sensitive data.