As you likely know, the Defender in Windows 10/8 is nothing but a cut-down version of Microsoft Security Essentials.
With default settings, Windows Defender in Windows 10 and Windows 8.1 downloads and installs required updates once a day and doesn’t require manual intervention.
This package will help you install the latest Windows Defender definition updates.
If you encounter problems while trying to install definition updates for Windows Defender, you can download the latest definition update for computers running a 32-bit (x86-based) or 64-bit version of Windows.
This guide is based on our previously published how to manually download Microsoft Security Essentials update guide.
Step 1: Check the version (32 or 64-bit) of Windows 10/8.1 installed on your PC.
Now with 2 free support incidents for Windows XP and Windows Server 2003.
The Windows Defender program in Windows 8 and Windows 10 versions of Windows helps you protect your data from viruses, malware and various other threats.
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.