Windows 10: Windows Defender definition updates

I use O&O Shutup10 to lock down everything, except Defender.
And I stayed on Anniversary Update until last week, when I thought I'd better go for Fall Creators Update and my Mobile ISP gave lots of GBs as a Christmas Promotion.

But now, Definition Updates are indeed sneaking through.
And what else, Huh?

After some extended searching, it seems System32/UsoClient.exe can have its permissions hobbled to give another way of stopping automatic Windows Updates and also Automatic Defender Definition Updates.

See here - How To Install Windows 10 Updates Manually


Make a backup copy of UsoClient.exe before messing with it. Just in case.

The old style Defender Interface can also be found at "%ProgramFiles%\Windows Defender\MSASCui.exe"
If you want to check updates that way.


Happy Holidays

 

PromU,

I just monitored my first [Ver 1709] WD update for three days and it was roughly 8MB i.e. about 2 1/2 ish MB a day.

Incidentally, I also ran my first [Ver 1703] WD update for three days and it was roughly 9MB i.e. about 2 1/2 plus a little bit MB a day. I am not surprised that they are the same.

[I'm not trying to suggest leaving it for three days is a good idea. I've been tied up on a non-internet task on both these computers so have hardly been connecting them at all.]

Denis

 

You're right...I just updated the definitions, after a 7 day lapse, and the download was just above 13mbs. Seems the most recent CU/Engine Update fixed the problem