Anti-virus developer Trend Micro is angry that Microsoft's free virus scanner Security Essentials recently the United States via the automatic update feature in offering. The spread of other software via Windows Update raises "serious questions about unfair competition”, said Carol Carpenter, the head of the Consumer and Small Business at Trend Micro, according to a report. People would not choose to give up Windows Update, so it should not be used this way in.

Microsoft objected to the publication reported, that the download option is offered through Windows Update, but about the overall Microsoft Update, via the example, the Office package and the media player would be kept up to date. For most users are likely to open up the subtle difference, however, hardly, especially since Windows Update in XP, Vista and Windows 7 by default is active.