We recently received this question from a reader of this blog:
“Hi! I am running Windows 7 with Windows Defender. Why does the Action Center say that I don’t have antivirus protection?”
Windows Defender comes with Windows 7 and although it is your first line of defense against spyware, it’s not technically antivirus software. The Action Center lets you know you need to download antivirus software. If you want to protect your computer against spyware and viruses, you need to install antivirus software, such as Microsoft Security Essentials. Microsoft Security Essentials is free if your computer is running genuine Windows software and it provides real-time protection against viruses, spyware, and other unwanted software for your personal computer or small business.
Get more information about antivirus software.