Windows update KB3004394 issues

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?

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274 answers

Anonymous

2014-12-11T22:23:51+00:00

Running Windows 7, Windows defender is off and service will not restart
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Anonymous

2014-12-11T22:21:33+00:00

Uninstall from an elevated command prompt:

wusa.exe /uninstall /kb:3004394

I'll try it when the next one happens.

Does anyone have the bad KB as a standalone installer or MSI (for x64 Win7)? My PC didn't pick it up while it was active and I would like to do some uninstall testing. I have had two customer calls so far today and guess that I might even see belated reports for a few weeks.
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Anonymous

2014-12-11T22:08:27+00:00

yes broke mind as well removed update and work again w7p 64bit
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Anonymous

2014-12-11T22:04:28+00:00

Uninstall from an elevated command prompt:

wusa.exe /uninstall /kb:3004394
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Anonymous

2014-12-11T21:51:17+00:00

The only fix I have found is to use system restore to go back to 12/9/2014 or before.

This solution isn't going to work for the long run. We need a fix that removes KB3004394 and repairs the damage it inflicted.
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