Update Windows Defender manually in Windows 8

Windows Defender in Windows 8 or Windows 8.1 is set to automatically download and install the definition updates using Windows Update, once a day. If for some reason, your Windows Defender will not update automatically, or if you wish to download and save the definition updates in order to maybe update Windows Defender offline, on different installations of Windows 8, then this post will be of interest to you.

We have already seen how to download Windows Update manually. Today, we will see how you can update Windows Defender manually.

Update Windows Defender manually in Windows 8

First check whether you are using a 32-bit or 64-bit version of Windows 8. Once you know the version of Windows 8 installed on your device, download the installers from the following links:

Download definition updates for Windows Defender in Windows 8 & Windows 8.1: 32-bit | 64-bit | ARM.

Update Windows Defender manually in Windows 8
Once the file has finished downloading, go to your download location and double-click the file mpam-fe.exe. Follow the prompts to install the update.

If you think some malware is preventing the installation of Windows Defender definition updates, you may want to run a scan with Microsoft Safety Scanner or for more stubborn malware, using Windows Defender Offline.

These links are sure to interest you too:

  1. Update Windows Defender even when Automatic Windows Updates is disabled in Windows 8
  2. Fix: Windows Defender is turned off or not working
  3. Fix: Unable to turn on Windows Defender in Windows 7 | 8
  4. Add Scan With Windows Defender To Context Menu In Windows 8.
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Anand Khanse aka HappyAndyK is an end-user Windows enthusiast, a Microsoft MVP in Windows, since 2006, and the Admin of TheWindowsClub.com. Please create a System Restore Point before trying out any software & be careful about any third-party offers while installing freeware. Add me on Google+.
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