Definition updates for Windows Defender Antivirus (Offline Downloads)

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Get offline definition updates for Windows Defender Antivirus for Windows 10 and 8.1.
Microsoft continually updates security intelligence in antimalware products to cover the latest threats and to constantly tweak detection logic, enhancing the ability of Windows Defender Antivirus and other Microsoft antimalware solutions to accurately identify threats. This security intelligence works directly with cloud-based protection to deliver fast and powerful AI-enhanced, next-generation protection.

Download latest definition updates for Windows Defender Antivirus | Microsoft Security Intelligence


Shared for informational purposes.
 
WD engine updates for v1703 and upwards Microsoft Update Catalog
Vasudev link lands on https://www.catalog.update.microsoft.com/ErrorInline.aspx?id=-1914896352

The website has encountered a problem
[Error number: 8DDD0020]

So, here's link that works for me ... https://www.catalog.update.microsoft.com/Home.aspx ...
and Last Updated (5/30/2019)
https://www.catalog.update.microsoft.com/Search.aspx?q=windows%20defender%20antivirus ... looks old, to me.
png_131.png
 
Last edited:
link looks broken to me ... link lands on https://www.catalog.update.microsoft.com/ErrorInline.aspx?id=-1914896352
So, here's link that works for me https://www.catalog.update.microsoft.com/Home.aspx
and
https://www.catalog.update.microsoft.com/Search.aspx?q=windows%20defender%20antivirus looks too old (5/30/20190 to be useful.
View attachment 214802

Same here.
 
Vasudev link lands on https://www.catalog.update.microsoft.com/ErrorInline.aspx?id=-1914896352

The website has encountered a problem
[Error number: 8DDD0020]

So, here's link that works for me ... https://www.catalog.update.microsoft.com/Home.aspx ...
and Last Updated (5/30/2019)
https://www.catalog.update.microsoft.com/Search.aspx?q=windows%20defender%20antivirus ... looks old, to me.
View attachment 214802
Same here.
Sorry I linked the wrong download link. It seems you need to click Download button and then download all 3 files which are x64,x86 and ARM64.