I don't use MS SE, however, I do use Windows Defender.

I know there are several ways to tweek SE to update as frequently as you choose. Can any of those methods be applied to WD? As it stands now, automatic updates are usually two three definitions behind from what I can manual update. Thank You!

 

I'd guess it is possible.

Write a batch file for MpCmdRun.exe

@echo off
cd "%PROGRAMFILES%\Windows Defender\"
start /min mpcmdrun.exe -signatureupdate

Place it, for example, under the Windows Defender folder. Then, create a scheduled task pointing to the *.bat file to update it say 30 in 30 minutes. Or whatever you wish. You would like to also define the task only to start when an Internet connection is found.

 

Though I am not currently using Windows Defender but an year ago when I was using it , I could manually run updates for it many times a day and it wouldn't update. The problem is that there were not such updates on server - there were twice per week . In order to up-to-date I had to download the daily updates from Microsoft Malware Protection Center : http://www.microsoft.com/security/portal/Definitions/HowToWD.aspx

With the batch file you are making the OP simply make WD update itself via the regular way . The question is are there really such updates on the servers ? Note WD is still different from MSE in some ways

 

OK. So, the problem is actually how often Microsoft sends updates to Windows Defender through their servers.

Yes, the batch file would only to the process automatically without user interaction.

I'm guessing one way would be to grab the definitions from the link you gave and update from it.

I wonder why the gap though It doesn't make any sense to have up-to-date definitions at the link you gave, but not when WD checks the servers for new definitions