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Published on 03.06.08 by Brent Trahan

How-to Use Windows Defender

Learn how to get the most out of Windows Defender.

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

This guide explains a few basics about Windows Defender and point you two a few important guides that’ll help you get the most out of Windows Defender.

Installing Windows Defender

Windows Defender is part of Windows Vista but it can also be installed on Windows XP SP2 or later. Windows Defender can’t be installed on earlier versions of Windows than XP SP2. You can install Counterspy which uses the same technology as Windows Defender but works on most versions of Windows as an alternative to Windows Defender.

Note: The company that makes Counterspy is a partner of GIANT AntiSpyware (the company bought by Microsoft a few years ago and eventually became Windows Defender) so it’s safe to use but will cost you a few dollars.

If you purchased a third party antivirus package like Symantec, McAfee, or Trend Micro, chances are that Windows Defender has been disabled. You’ll have to enable Windows Defender before you can use it.

Scanning Your Computer

By default Windows Defender will scan your computer for malware once a day at 2am and automatically remove severe threats. Medium and low threats will not be removed automatically, but it’ll notify you and wait for you to tell it what to do. Windows Defender also protects your computer in real-time from pop-ups and malware.

You can manually perform a partial, full, or custom scan if you feel the need.

If Windows Defender finds potentially malware you’ll be asked how to deal with them.

Using Software Explorer

If your computer seems sluggish Windows Defender has a tool called Software Explorer that shows you detailed information about running programs. You can also use Software Explorer to stop programs from starting when Windows boots to speed up your computer’s boot time and overall speed.

Tweak Windows Defender’s Settings

Windows Defender is configured to work best for most people right out of the box. If you want to tweak Windows Defender check out my Windows Defender options guide.

Still need help? Ask your computer question now.

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