Webopedia on Google+Webopedia on TwitterWebopedia on FacebookTech Bytes Blog
Main » TERM » W »

Windows Defender

Windows Defender is an anti-malware tool built into Microsoft's Windows 8 and newer operating systems that is designed to protect computers from viruses, spyware and other forms of malware.

While Windows Defender can't be downloaded or used on versions of Windows prior to Windows 8, Microsoft does offer a predecessor to Windows Defender called Microsoft Security Essentials that can be freely downloaded and used on Windows Vista and Windows 7 operating systems.

Windows Defender vs. Microsoft Security Essentials

Both of these Microsoft Security Software tools offer real-time protection against viruses, rootkits, spyware and other malicious software as well as features like online and offline system scanning and cleaning. One key differentiating feature, though, is that only Windows Defender offers enhanced protection against rootkits and bootkits.

Windows Defender primarily runs in the background, only notifying users when a specific action needs to be addressed. Users can also run scans on demand if desired or manually update the tool with the latest security definition files.

What Is Windows Defender Offline?

Microsoft also offers a version of Windows Defender called Windows Defender Offline that can be used via a USB flash drive or CD/DVD to help detect and remove specific types of malware that are designed to prevent users from being able to access Windows Defender and other types of anti-malware software.







TECH RESOURCES FROM OUR PARTNERS
LATEST ARTICLES
8 Agenda Apps to Help Students Stay Organized

Webopedia's student apps roundup will help you to better organize your class schedule and stay on top of assignments and homework. Read More »

20 Ways to Shorten a URL

If you need to shorten a long URL try this list of 20 free online redirection services. Read More »

Top 10 Tech Terms of 2015

The most popular Webopedia definitions of 2015. Read More »

STUDY GUIDES
Computer Architecture Study Guide

This Webopedia  study guide describes the different parts of a computer system and their relations. Read More »

Network Fundamentals Study Guide

Networking fundamentals teaches the building blocks of modern network design. Learn different types of networks, concepts, architecture and... Read More »

The Five Generations of Computers

Learn about each of the five generations of computers and major technology developments that have led to the current devices that we use today. Read More »