1. Install and regularly update an antivirus program on your PC.
2. Enable a firewall and keep it up-to-date.
3. Avoid clicking on suspicious or unknown links, or opening unknown email attachments.
4. Think before downloading any freeware or shareware applications.
5. Keep your operating system and applications up-to-date with the latest patches and security updates.
6. Beware of ads and pop-ups, as these can contain malicious code.
7. Use secure passwords and never share them with anyone.
8. Be careful when sharing files online and only download from trusted sites.
9. Disable remote access to your computer.