1. Keep Windows Updated
Microsoft regularly patches vulnerabilities in Windows. In 2025, with threats evolving faster than ever, staying updated is your first line of defense. Go to Settings > Windows Update and make sure automatic updates are enabled.

2. Enable Real-Time Protection
Windows Defender (now known as Microsoft Defender) has grown into a powerful, free antivirus solution. Make sure real-time protection is turned on via Settings > Privacy & Security > Windows Security.

3. Use a Strong Password or Passphrase
Password123? Not in 2025. Create complex passphrases (e.g., “
BlueSky!Runs$Fast2025
”) or use a password manager like Bitwarden or 1Password to generate and store secure credentials. Enable Windows Hello or 2FA for added protection.
4. Beware of Phishing Emails & Links
Phishing scams are getting sneakier with AI-generated emails and lookalike websites. Always check URLs, never click unknown links, and enable “SmartScreen” protection in Edge or Chrome. Trust your instincts—if it feels off, it probably is.

5. Use a Secure Network & Firewall
Never connect to open public Wi-Fi without a VPN. At home, change your router’s default password and keep firmware updated. Enable the Windows Firewall and double-check that it's monitoring both private and public networks.

Final Advice
Cyber threats in 2025 are smarter, faster, and more dangerous. But with simple steps like regular updates, cautious clicking, strong passwords, and smart settings, you can lock down your system without extra software. Stay aware, stay secure.