Microsoft's free AV got 1.5 million downloads in first week
Microsoft registered more than 1.5 million downloads of its free antivirus software in the week after it shipped.
The company's Security Essentials software is a basic antivirus program designed to appeal to Windows users who don't want to shell out the US$40 to $50 per year that most AV vendors charge. It was launched on Sept. 29, and by Oct. 6, the software had been downloaded more than 1.5 million times, according to a Thursday blog post by Microsoft.
The free AV software has proved popular with Microsoft's Windows 7 operating system, which is available to business users now, but set to be made widely available next Thursday. According to Microsoft, 44 percent of users are running Windows 7, followed by XP (33 percent) and then Vista (23 percent).