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- Protect your PC - Microsoft Windows
See how to help safeguard your account, defend against viruses, protect yourself on the web, and lock your data.
- Security, privacy, &accounts - Microsoft Windows Help
Get help with security, privacy, and user accounts, including info about viruses, passwords, parental controls, firewalls, and drive encryption.
- How can I help protect my PC from viruses?
Learn about Windows Defender, Windows Update, and other ways you can help prevent malicious software from running on your PC.
- How do I find and remove a virus?
Learn about antivirus programs, online scanners, and tools that help remove malicious software from your Windows PC.
- Windows Defender and Windows SmartScreen fight viruses and other malware - Microsoft Windows
Use Windows Defender and Windows SmartScreen to help protect it against viruses, spyware, and other malicious software.