what does windows defender do?
Windows Defender is a software product that attempts to detect and remove malware. Initially released as an antispyware program, it was first released as a free download for Windows XP, shipped with Windows Vista by default, and currently ships with antivirus capabilities as part of Windows 10.n the Windows Defender options, the user can configure real-time protection options. Browser integration. Integration with Internet Explorer and Microsoft Edge enables files to be scanned as they are downloaded to help ensure that one does not accidentally download malicious software.