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Microsoft Windows Defender Definition Update March 30, 2023
Download the latest updates or definitions for your Microsoft Windows Defender security software. Learn what's new on this latest version.
This file has to be downloaded directly from an external mirror (official website).
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This package will help you install the latest Windows Defender definition updates. 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.
How to download and install a Microsoft Windows Defender update: Read more.
How to download and install a Microsoft Windows Defender update: Read more.
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2586 votesProvides real-time protection for your home PC that guards against viruses, spyware, and other malicious software.- Freeware
- Windows
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176 votesFree program that protects your computer against pop-ups, slow performance and security threats.
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404 votesProvides real-time protection for your home PC that guards against viruses, spyware, and other malicious software.
- Freeware
- Windows