To secure a computer, key measures include keeping software up to date, using antivirus and antispyware software, enabling firewalls, using strong and unique passwords, avoiding suspicious downloads, and securing your internet router and network.

Main Steps to Secure Your Computer

• Keep software updated : Regularly apply updates and patches to your operating system, browsers, and all applications to protect against vulnerabilities. Enable automatic updates whenever possible.

• Use antivirus software : Install reputable antivirus software and keep it up to date with automatic updates enabled to safeguard from malware and viruses.

• Enable firewall protection : Use the built-in operating system firewall and secure your home router’s firewall to control incoming and outgoing internet traffic.

• Use strong passwords and password management : Create complex passwords combining letters, numbers, and symbols. Use different passwords for every account, and consider a password manager to securely store them.

• Avoid suspicious files and websites : Do not download files or click on links from unknown or untrusted sources to prevent malware infections.

• Backup data regularly : Periodic backups and using cloud storage help recover data in case of infection or failure.

• Operate with least privilege : Use standard user accounts for daily tasks instead of administrator accounts to limit damage if malware infects your system.

• Secure your network : Secure your router with a strong password, disable remote management if not needed, and avoid connecting to untrusted or unsecured public Wi-Fi networks.

Implementing these strategies collectively builds a robust defense against threats to your computer's security. This summary encapsulates comprehensive best practices recommended by security experts and agencies for everyday users to keep their computers safe and secure.