Windows Defender是保護軟件，可以幫助檢測和刪除已知的間諜軟件從您的計算機對您的彈出窗口，降低性能，以及間諜軟件和其他有害軟件導致的安全威脅的計算機。 Windows Defender的功能特征：實時保護，監控系統，防止間諜軟件時建議的檢測行為，最大限度地減少中斷，并幫助您保持高效。

Windows Defender is software that helps protect your computer against pop-ups, slow performance, and security threats caused by spyware and other unwanted software by detecting and removing known spyware from your computer. Windows Defender features Real-Time Protection, a monitoring system that recommends actions against spyware when it's detected, minimizes interruptions, and helps you stay productive.

官方網站：http://www.microsoft.com/

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