Microsoft Windows Defender is a program made by Microsoft to combat spyware on their operating systemoperating system. Windows Defender is a free product for users of Windows XP and Windows Vista. Windows Defender is the current version of Microsoft antispyware.
Windows Defender is a reliable program and has been known to catch more malware programs than Spybot. The ITS Helpdesk therefore recommends that either Spybot or Windows Defender be used on every Windows computer, depending on the individual computer owner's preference.
- Microsoft Windows Defender - Official site (includes download)