Windows Defender

Windows Defender (which used to be called Microsoft AntiSpyware), is an application made by Microsoft. It was released on October 24, 2006. Windows Defender prevents, quarantines, and removes spywares in Windows Vista and Windows 7. It also prevents computer viruses in Windows 8 and above. It can also be downloaded for free for Windows XP and Windows Server 2003.

Related pages
Microsoft Security Essentials

References

 Other websites 

Category:Antivirus software
Category:Microsoft software