Failed Windows Defender updates

  tallboy 22:37 24 May 2010

I run a 6-month old PC with 64-bit Win 7 OS. After Windows update had finished its latest round of updates today and presented me with the update log, I noticed that there are five failed important definition updates for Windows Defender KB15597. These are:

However, definition 1.81.1890.0 (the latest) was successfully installed on 17th May.

In the case of KB15597 does the latest update write over the previous / earlier updates, or are they all cumulative? (i.e. Do I need to try and obtain / install these failed updates again, or can I ignore them since later ones have installed OK?

  northumbria61 22:44 24 May 2010

Updates WILL fail if they are already on your system -ie. they have been previously downloaded - they do not overwrite.

  tallboy 12:23 25 May 2010

Thanks for the reply northumbria61. Since I have never downloaded updates manually on this PC, but have always relied on Windows automatic mode, surely in this mode the updates would not download a second time if they were present & correct.

So, how do I check that these versions of KB15597 are present & working correctly?

  onthelimit 14:31 25 May 2010

If you run the Belarc scanner click here it will tell you.

  northumbria61 22:49 25 May 2010

click here

Is this your query - if so here is an answer.

  northumbria61 23:02 25 May 2010

Is it possible you are running an older version of Windows Defender ?
"If Windows Defender informed you that an update is available, you are running an older version"

Latest Version available here -

click here

  robin_x 02:12 26 May 2010

I never got along with Defender.

Use Avira and WinPatrol.

Was a bit of a bugger to disable Defender. It did not want that.

Reminded me of Marvin in Hitch.

Bloody doors.

  tallboy 11:47 26 May 2010

Thanks for the link to the Belarc scanner onthelimit. I have downloaded and installed this. It's a great tool. It provides more info about your system and installed software than any other analysis tool I've seen - well worth having on any PC - so many thanks for that! It also shows that the latest Windows Defender updates have installed OK, so I'm 'in the clear'.

Thanks for your responses northumbria61. Yes, it is my entry on the Microsoft Answers forum. I have now updated that. The version of Windows Defender I am running should be the latest as the PC was new in December. The version in your link was published in May 2007 - well before this PC was built.

  northumbria61 13:18 26 May 2010

I realize the link I gave you was OLD - I just couldn't understand why most of the links about Windows Defender KB15597 referred to a BETA version which is why I queried whether you were running an older version. I agree with you BELARC is a great tool.

  onthelimit 15:04 26 May 2010

Yes, I agree belarc is very useful. Re Defender - if you change to Microsoft Security Essentials, you get antivirus and antimalware, and it supercedes Defender.

  tallboy 22:38 26 May 2010

Thanks for the tip about Microsoft Security Essentials onthelimit - I'll look into deploying it.

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