What are the anti-virus software specified by Win7?

Q: What are the anti-virus software specified by Win7?
A: At the moment, the days of Microsoft Windows 7 release are getting closer and closer, and for an operating system, system security has always been an important aspect, and anti-virus software It is an important tool to protect the system.
Now, Microsoft has increased its number of anti-virus software vendors for Windows 7 to 10, with the exception of AVG, Symantec, and Kaspersky, adding McAfee, Trend Micro, Panda Security, and F-Secure. Webroot, BullGuard, G Data.
Microsoft said that since the release of Windows 7 Beta, the company has been working with the vendors on the list to provide the most complete security protection for Windows 7.
Microsoft also said that before installing anti-virus software, make sure that no other anti-virus software is installed on the computer. If it is, delete it and then install new anti-virus software, otherwise it may cause adverse consequences. However, from a realistic point of view, Microsoft's prompts seem unnecessary, because many anti-virus software will promptly uninstall other anti-virus software, otherwise it will not be able to install.