KB3020370 fails to install on two different windows 8.1 systems

I have KB3020370 as an optional update on two of my windows 8.1 systems.  It fails to install on both systems.  I have tried to do a standalone install but that fails also.  does anyone have this problem also.
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MS official document lists this update as a prerequisite:
Can you check if you met this requirement?
If already installed, please post back the installation log files of the update that failes (they're usually one of the newer files in the C:\Windows folder)
JohnBusiness Consultant (Owner)Commented:
Please let us know about KB2919355. That update is from a year ago. Have you got all other critical AND recommended updates installed? There were TWO patch Tuesdays just this month alone, so there are dozens and dozens of recent updates. KB3020370 is a year newer and is on my Windows 8 machine.

The update is for 64-bit systems and there appears to be a conflict with language packs.

gmerilliAuthor Commented:
both systems are up to date.  At least according to windows update.   windows update is set to automatic.  this is the only update that shows as not being installed and it shows as optional.
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JohnBusiness Consultant (Owner)Commented:
On one system, try the Windows 8 on board repair tools:

1. System File Checker:

Open cmd.exe with Run as Administrator.
Run SFC /SCANNOW, allow to complete and run a second time.
Restart the computer and test.

2. If that does not help, try DISM:

Open cmd.exe with Run as Administrator.
DISM.exe /Online /Cleanup-Image /Scanhealth (takes 15 - 20 minutes).
DISM.exe /Online /Cleanup-Image /Restorehealth (takes 15 - 20 minutes).
Restart the computer and test.

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What's the error code?
gmerilliAuthor Commented:
Ran the following on both machines and the problem was fixed:

In an elevated command prompt:  DISM.exe /Online /Cleanup-image /Restorehealth

Per KB947821
JohnBusiness Consultant (Owner)Commented:
So that is the answer I gave you above and you should probably close the question
*** Hopeleonie ***IT ManagerCommented:
Can you upload:


for us?
JohnBusiness Consultant (Owner)Commented:
@gmerilli  - Thanks for following up.
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