Included in Windows 8.1 and Windows RT 8.1, Windows Defender helps guard your PC against viruses and other malware. For a PC running an older version of Windows, you can download Microsoft Security Essentials. Windows Defender for Windows
http://www.ebrahma.com/2013/11/protect-your-windows-8-1-and-windows-rt-8-1-against-viruses-and-other-malware/Labels: Protect-your-Windows-8.1, Protect-your-Windows-8.1-and-Windows-RT-8.1-against-Viruses-and-other-Malware, virus-window-8, Viruses-and-other-Malware, window-8-antivirus, window-virus