Microsoft Security Essentials provides real-time protection for your home PC that guards against viruses, spyware, and other malicious software.

Microsoft Security Essentials is a free download from Microsoft that is simple to install, easy to use, and always kept up to date so you can be assured your PC is protected by the latest technology. It's easy to tell if your PC is secure - when you're green, you're good. It's that simple.

Win Xp Antivirus Download

Microsoft Security Essentials runs quietly and efficiently in the background so that you are free to use your Windows-based PC the way you want - without interruptions or long computer wait times.

Computer Windows Xp Antivirus Download

Antivirus Windows Xp Free Download

Best Antivirus for Windows XP. The Windows XP operating system (OS) was the most popular OS released by Microsoft. The Windows XP operating system, codenamed 'Whistler,' was widely used as it offered security, stability, and efficiency. Nov 29, 2016  Microsoft Security Essentials runs quietly and efficiently in the background so you’re free to use your Windows-based PC the way you want—without interruptions or long computer wait times. Before installing Microsoft Security Essentials, we recommend that you uninstall other antivirus software already running on your PC.