11 ways by which you can protect your pc from catching virus (for free).

Protecting your computer from viruses and malware is important for maintaining its security and performance. 

Here are some tips to help you prevent your PC from catching viruses for free:

1. **Use a Reliable Antivirus Program:**

   - There are several free antivirus programs available, such as Avast, AVG, and Avira. Install a reputable antivirus software and keep it updated regularly.

2. **Enable Windows Defender:**

   - Windows operating systems come with a built-in antivirus tool called Windows Defender. Make sure it is enabled and receives regular updates.

3. **Keep Your Operating System Updated:**

   - Regularly update your operating system to ensure you have the latest security patches. Enable automatic updates to stay protected against known vulnerabilities.

4. **Use a Firewall:**

   - Enable the built-in firewall on your operating system. Firewalls help monitor and control incoming and outgoing network traffic, providing an additional layer of protection.

5. **Be Cautious with Email Attachments:**

   - Avoid opening email attachments from unknown or suspicious sources. Viruses and malware are often spread through email attachments, so exercise caution and use email filtering options.

6. **Download from Trusted Sources:**

   - Only download software, apps, and files from reputable and official sources. Avoid downloading cracked software or files from untrustworthy websites, as they may contain malware.

7. **Regularly Backup Your Data:**

   - Backup your important data regularly to an external drive or cloud storage. In case your computer is infected, having a recent backup ensures you don't lose critical information.

8. **Use Strong and Unique Passwords:**

   - Use strong, complex passwords for your accounts and change them regularly. This helps protect your personal information and prevents unauthorized access.

9. **Stay Informed:**

   - Stay updated on the latest security threats and best practices for online safety. Knowledge is a powerful tool in preventing security breaches.

10. **Secure Your Wi-Fi Network:**

    - Protect your Wi-Fi network with a strong password and encryption. This helps prevent unauthorized access to your network, reducing the risk of malware infections.

11. **Educate Yourself:**

    - Learn about common phishing techniques and online scams. Be cautious about clicking on links in emails or on websites, especially if they seem suspicious.

Remember that no security measure can provide 100% protection, so it's important to remain vigilant and practice safe online habits. Regularly updating software and being cautious about the content you interact with go a long way in preventing viruses and malware infections.