1. Install a good antivirus. Free or Paid both are good, but kindly don't used cracked versions.
2. Now Install real-time anti-spyware protection
3. Update your Anti-virus programs daily.
4. Perform scans on your computer daily.
5. Disable auto-run to prevent infection from pen-drives.
6. Disable image previews if using Outlook
7. Use authentic anti-virus which has browser plugins and scans all URL's for unauthorized content.
8. Always use Hardware based Firewall.
9. Don't click on any mail links or attachments from unknown sources or malicious users.
10. Never download software's from third-party sites. Download from original website. Do not use any crack version it may be contain dangerous virus.
******************************
