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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? - Microsoft Windows Help
Learn about antivirus programs, online scanners, and tools that help remove malicious software from your Windows PC.
Is it necessary to download additional Virus Software to Surface RT
Is it necessary to download additional Virus Software to Surface RT and should I also install a Registry cleaner and something like CCleaner?