How to Scan a Computer with Windows Defender

  • google plus

In Brief...

Windows 7 provides enhanced security features to help protect your system, as well as your privacy. One of these features is Windows Defender. Windows Defender monitors your computer for malicious attacks and also gives you the ability to run an on-demand scan. To scan your computer using Windows Defender, follow these six steps.

Take our Windows 7 course for free.

See the Course Outline and Register


  1. Select the Start menu button.

  2. In the Search programs and files text box, type "Windows Defender".

  3. Select Windows Defender.
    Select Windows Defender

  4. You may be prompted to check for updates. If so, click Check for updates now.
    Check for Updates

  5. To scan your computer, click Scan.
    Click Scan

  6. Windows Defender will scan your computer and alert you if any malicious activity is discovered.

Webucator provides instructor-led training to students throughout the US and Canada. We have trained over 90,000 students from over 16,000 organizations on technologies such as Microsoft ASP.NET, Microsoft Office, XML, Windows, Java, Adobe, HTML5, JavaScript, Angular, and much more. Check out our complete course catalog.



Author: Margaux Judge

Margaux Judge has worked as an e-learning editor and instructional designer for over ten years, writing and editing a wide variety of courses, from technical topics to soft skills. She has a Bachelor's degree in English and Textual Studies from Syracuse University and a Master's degree in Television Writing from Boston University.