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Windows 7: Warning - KB3004394 corrupts system files

10 Dec 2014   #11
robinb9

Windows 7 Pro 32/64 bit and Windows 10 Pro 32 Bit/64bit
 
 

here is another issue. and this for windows 8 and 7. I installed the kb on windows 8, no issues. Then I went to update Office 2013 and it came back saying there are network issues. NOT!. I uninstalled the kb on my windows 8 pro desktop and laptop. Now Office 2013 updates on both machines.

So it is effecting Windows 8 also for those who have office 2013 or Office 365
It is staying hidden on both till this is fixed


My System SpecsSystem Spec
.
10 Dec 2014   #12
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

More details are coming in on other forums:

Windows Update KB3004394 triggers error messages - News
My System SpecsSystem Spec
10 Dec 2014   #13
Urthboundmisfit

Win 10 Pro x64, Win 7 Pro x64
 
 

2 more threads here:
SFC found corrupt files after Windows update - never had any before
Windows Diagnostic Tool Error 0x800706F7

Discussion @ Wincert says KB3004394 prevents further updates from installing starting @ post #305:
Update list GDR pour Windows 7 SP1 x86/x64 (Fr-En-De-Es-It) - 30 novembre 2014 - Page 16 - Windows 7 et 8 - WinCert.net Forums - Page 16

Another relevant post by qm7 @BC: Windows Update KB3004394 triggers error messages - News

VirtualBox Ticket #13677: 4.3.20 crash after today's Windows update (last comment by bird when I checked)
Quote:
From what I can tell, the KB3004394 update does not install a catalog file on 64-bit windows 7. It does on Windows 8.1 (C:\Windows\system32\CatRoot\{F750E6C3-38EE-11D1-85E5-00C04FC295EE}\Package_1_for_KB3004394~31bf3856ad364e35~amd64~~6.3.1.0.cat), so VBox works fine there.

The result of the missing .cat file is that VBox (nor SysInternal's SigCheck.exe for that matter) is not able to verify the authenticity of c:\windows\system32\crypt32.dll and wintrust.dll. If we cannot find any valid signature for the files, we have to assume that they have been tampered with and are forced to abort application loading. These two dlls are important for validating other components, so there is absolutely no way we can ignore this.

Until Microsoft fixes the KB3004394 update on Windows 7, the only solution is to revert/uninstall it.
My System SpecsSystem Spec
.

10 Dec 2014   #14
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

Quote:
Until Microsoft fixes the KB3004394 update on Windows 7, the only solution is to revert/uninstall it.
....and to 'hide' it when it shows up next time. Then you will be safe.
My System SpecsSystem Spec
10 Dec 2014   #15
robinb9

Windows 7 Pro 32/64 bit and Windows 10 Pro 32 Bit/64bit
 
 

Microsoft just pulled it from the mu servers
My System SpecsSystem Spec
10 Dec 2014   #16
The Howling Wolves

Windows 7 Home Premium 64bit
 
 

I have always installed Windows updates in increments.
Taking the smaller ones first, if it asks for a reboot I do it, then I pick away at the larger ones. Again if it tells me to reboot I do it.

With the update KB3004394 I right clicked on it and hid it.

With this group of updates and the way I did it all systems are working great with just 2 reboots.
Guess I am one of the lucky ones or my system of doing updates is one good way to handle the updates.IMHO
Dennis
My System SpecsSystem Spec
11 Dec 2014   #17
ThisIsMadness91

Windows 7 Home Premium 64bit (Service Pack 1)
 
 

That explains why my magnifier wasn't working after I updated yesterday. I got rid of all the updates yesterday and the problem went away. The Office updates and the malicious software removal tool have been reinstalled, but I left the others uninstalled for the time being. I'll either hide that one and reinstall the rest today, or follow Lady Fitzgerald's example and wait for the weekend to come.
My System SpecsSystem Spec
11 Dec 2014   #18
Scottyboy99

Windows 7 Ultimate 64 bit
 
 

I already installed this in my machines and don't see any issues. So MS has pulled it since. Should I uninstall despite seeing no problems. Are MS likely to issue a newer replacement KB at some point?
My System SpecsSystem Spec
11 Dec 2014   #19
Urthboundmisfit

Win 10 Pro x64, Win 7 Pro x64
 
 

Quote   Quote: Originally Posted by Scottyboy99 View Post
...So MS has pulled it since. Should I uninstall despite seeing no problems...
The fact that M$ has pulled the update (for Win 7 only) indicates there is/are problems/potential problems for all Win 7 users. Even if as you say you "don't see any issues" it doesn't mean they're not there...you may not have encountered a problem yet but I've read in several forums that KB3004394 prevents installation of further M$ Updates = BIG problem!!! I would err on the side of caution and uninstall or use system restore to revert to the point before this update was installed.

YMMV.

Quote   Quote: Originally Posted by Scottyboy99 View Post
...Are MS likely to issue a newer replacement KB at some point?
One would assume yes, but even if no the Update is FUBAR. Uninstall it, I say... no need to hide it for now because it won't (or at least shouldn't) be re-offered.
My System SpecsSystem Spec
11 Dec 2014   #20
Scottyboy99

Windows 7 Ultimate 64 bit
 
 

Ok cheers mate. I will do that
My System SpecsSystem Spec
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 Warning - KB3004394 corrupts system files




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