Windows Update Error - KB3000850 - Couldn't Complete Update Undoing Changes

I have attempted to download the new optional update Windows8.1-KB3000850-x64 which is a large file.  I have attempted twice from Windows update. Both times it downloads and seems to install fine. After I completes it asks for a reboot. During the reboot it gets to about 8% of install then it goes to another screen that states that, "Couldn't Complete the Updates Undoing Changes." It then restarts and boots up fine but the update is not installed. I also tried to download and install the standalone version and got the same error. I found a help article and tried it out and it didn't work. This is the steps I followed.

Windows 8.1, Windows 8, Windows Server 2012 R2 or Windows Server 2012
To resolve this problem, use the inbox Deployment Image Servicing and Management (DISM) tool. Then, install the Windows update or service pack again.
  1. Open an elevated command prompt. To do this, swipe in from the right edge of the screen, and then tap Search. Or, if you are using a mouse, point to the lower-right corner of the screen, and then click Search. Type Command Prompt in the Search box, right-click Command Prompt, and then click Run as administrator. If you are prompted for an administrator password or for a confirmation, type the password, or click Allow.
  2. Type the following command, and then press Enter.
    It may take several minutes for the command operation to be completed.
    DISM.exe /Online /Cleanup-image /Restorehealth
    Important When you run this command, DISM uses Windows Update to provide the files that are required to fix corruptions. However, if your Windows Update client is already broken, use a running Windows installation as the repair source, or use a Windows side-by-side folder from a network share or from a removable media, such as the Windows DVD, as the source of the files. To do this, run the following command instead:
    DISM.exe /Online /Cleanup-Image /RestoreHealth /Source:C:\RepairSource\Windows /LimitAccess
    Note Replace the C:\RepairSource\Windows placeholder with the location of your repair source. For more information about using the DISM tool to repair Windows, reference Repair a Windows Image
  3. Close the command prompt, and then run Windows Update again.

Does anyone have any other ideas of what I might try?


Question Info

Last updated August 17, 2019 Views 18,640 Applies to:

Struggled with this problem for many weeks.  Finally found the solution: 

from a post by Ueberlappen:

I'll quote him:

Thx a lot guys, creating following folders



and coping following files from C:\Windows\Inf to these folder worked like a charm :D




I also have a Kodak printer seems like Kodak is to blame for this.

Like him, I had a KODAK printer installed.  Even though I had uninstalled it several months before, residual effects from installation still prevented KB3000850 from installing.  So if you have (or even had) a KODAK printer installed, follow these steps.

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