In all other compatible versions, Defender provides full malware protection. In Windows 7, Defender only provides protection against spyware. Windows Defender is available for Windows 7, 8, 8.1, RT and 10. Windows Defender is built into the latest versions of Windows and helps guard your PC against viruses and other malware. Windows Defender and Microsoft Security Essentials Only download and enable one antivirus product uninstall any and all other antivirus software installed on your computer to ensure optimal protection and performance. It is strongly recommended that you download and install one of the following antivirus products. While no antivirus is 100 percent foolproof, there are now many free and often operating system-integrated products that help protect your machine from viruses and malware when paired with safe computing practices. One of the most important ways you can protect your personal computer (PC) is to download antivirus software and run regular scans. How can I protect my computer with antivirus software? Share & Print

Windows 7 built in antivirus