Security software: A reliable security software can detect and remove malware, viruses, and other threats that can compromise your computer’s security. Make sure that your computer has up-to-date antivirus and anti-malware software installed and that it is regularly updated.

Firewall: A firewall acts as a barrier between your computer and the internet, preventing unauthorized access to your network. Ensure that your computer’s firewall is enabled and properly configured.

Operating system updates: Operating system updates often include important security patches that fix vulnerabilities and security issues. Make sure that your operating system is set to automatically update, or regularly check for updates and install them promptly.

Unusual activity: If you notice any unusual activity on your computer, such as pop-ups, strange error messages, or a sudden slowdown in performance, it may be a sign that your computer has been compromised.

Email and online accounts: Be wary of suspicious emails or links, and never provide personal information or passwords unless you are certain that the request is legitimate. Use strong and unique passwords for each online account, and enable two-factor authentication wherever possible.

Data backups: Regularly backing up your data can help protect it in case of a security breach or hardware failure. Make sure that your backups are encrypted and stored securely.

Phishing scams: Phishing scams attempt to trick you into providing personal information or passwords. Always double-check the authenticity of the email, website, or message before responding or clicking on any links.