Win10 ver1803 Defender Not Updating

Redbatman said:

Where are these lists located? I'm curious now. Could you please provide link?

Yes, but it's a number of related update servers, not a website so you won't be able to read anything.

Windows Update

The following endpoint is used for Windows Update downloads of apps and OS updates....

Source process	Protocol	Destination
svchost	HTTPS	*.prod.do.dsp.mp.microsoft.com

https://docs.microsoft.com/en-us/win...windows-update

Windows update sends requests to the servers and receives the data for the available patches, it then compares that with those already installed to work out which patches to download. A cumulative update includes all the patches issued to date, but windows update only downloads the ones you haven't got.

Defender has its own separate set of update servers.

The following endpoints are used for Windows Defender definition updates. If you turn off traffic for these endpoints, definitions will not be updated.

Source process	Protocol	Destination
		definitionupdates.microsoft.com
MpCmdRun.exe	HTTPS	go.microsoft.com

https://docs.microsoft.com/en-us/win...ndows-defender

Redbatman said:

Good news it updated 1.267.675.0 from virus protection.

But that is last nights, 1.267.704.0 is the newest one.

Have just checked on Win10 and on Win7, MS do seem to keep the updates out of step. Win10 currently gets 1.267.675.0 while Win7 gets 1.267.700.0. I guess that the MS techie who's job it its to put a definition update on the windows update servers does Win10 first, then takes his time to get round to Win7/8. Whatever is current at the time the update server gets 'updated' would be the definitions it will deliver.

Neither are the latest, but for that you can download the manual definitions update package.

For my part, a manual check in both Win10 and Win7. It should make no difference whether the check is manual or automatic, the version you get is the one the windows update server knows as their 'latest'.