Microsoft Windows Defender Update

Microsoft Windows Defender Definition Update February 22, 2017

Download the latest updates or definitions for your Microsoft Windows Defender security software

Windows
Upgrade/Patch
133 MB
497,642
4.34.3 559 votes

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:

  1. Check whether your version of Windows is 32-bit or 64-bit.
  2. In the table left, click on the link that will work for your version of Windows.
  3. Save the file to your Desktop.
  4. When the file has finished downloading, go to your Desktop and double-click the file dowloaded (it will be called win10-mpam-fe-x64.exe, win10-mpam-fe-x86.exe or similar).
  5. Follow the prompts to install the update.