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How to: Launch Windows Defender

21 December 2013 by J.M.

Keep your computer secure by using Windows Defender. What is Defender, and how to open the program?

Windows Defender is antispyware software that's included with Windows and runs automatically when it's turned on. Using antispyware software can help protect your computer against spyware and other potentially unwanted software. Spyware can be installed on your computer without your knowledge any time you connect to the Internet, and it can infect your computer when you install some programs using a CD, DVD, or other removable media. Spyware can also be programmed to run at unexpected times, not just when it's installed.

In Windows 7, open Windows Defender by clicking the Start button. In the search box, type Defender, and then, in the list of results, click Windows Defender.

In Windows 8 and 8.1, open Windows Defender by swiping in from the right edge of the screen, and then tapping Search (or if you’re using a mouse, pointing to the upper-right corner of the screen, moving the mouse pointer down, and then clicking Search), entering Defender in the search box, tapping or clicking Apps, and then tapping or clicking Windows Defender.

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