Mungkin ada beberapa teman yang sudah mengetahui tentang hal ini, bahwasanya Microsoft telah mengeluarkan Antivirus gratis yang bisa dibilang cukup tangguh untuk melawan virus yang sudah beredar dimana-mana.
Microsoft Security Essentials
Brief Description

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

Files in this Download

The links in this section correspond to separate files available in this download. Download the files most appropriate for you.
File Name:
Size:
Download files below mssefullinstall-amd64fre-en-us-vista-win7.exe 8.3MB
Download mssefullinstall-x86fre-en-us-vista-win7.exe 8.1MB
Download mssefullinstall-x86fre-en-us-xp.exe 12.5MB
Download Quick Details
Version: 1
Date Published: 10/7/2010

Overview
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.
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.

*Your PC must run genuine Windows to install Microsoft Security Essentials.
System Requirements

* Supported Operating Systems:Windows 7;Windows Vista;Windows XP

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