I don't know if it will help, but I was trying to find if I had the KB2004394 update. I checked in the "View Installed Updates" and didn't see it or KB3024777 either, but I did find them both in "View Update History".
Why in one and not the other??
Windows update KB3004394 issues
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Anonymous
Windows update KB3004394 causes the following issues on my Windows 7 x64 Ultimate system:
All MMC functions (Event Viewer, etc.) now require Administrator action, although in an Administrator account.
Windows Defender service will not start
The Windows Defender Service Terminated with the following error
%%-2147023113
Removing it returns the system to normal.
Anyone else experience this?
Windows for home | Previous Windows versions | Windows update
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Anonymous
2014-12-14T18:13:43+00:00 -
Anonymous
2014-12-14T18:05:24+00:00 ... there are many variations of the problems these two updates cause.
Yep. That's why I'm going to leave well alone for the time being.
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Anonymous
2014-12-14T17:51:18+00:00 Noel
I was having no problems and allowing KB3024777 to install seemed to result in adding 10 seconds to my boot time. After a few hour I traced the problem to raptr ( parasite), which managed to install itself without my knowledge. I have removed it and all is now fine.
Unfortunately there are many variations of the problems these two updates cause.
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Anonymous
2014-12-14T17:36:52+00:00 Some users have used System restore ...
Yes, I know - but presumably only some of those who were having problems. There is evidence that uninstalling KB3004394 either manually or using KB3024777 brings its own crop of problems, like having to re-activate Windows or display drivers that stop working. I asked whether there's any danger in keeping KB3004394 if it's not causing problems. This is not at all clear from any of the documentation I can find.
I'm also concerned about this update - KB3024777 - that seems determined to install itself despite the fact that I don't want it. I've never come across such a persistent Windows update before that won't allow itself to be hidden:
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Anonymous
2014-12-14T17:27:42+00:00 Have you now installed all Windows Updates without KB3004394