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Error while upgrading to Windows 10

Anonymous
2017-12-19T19:55:00+00:00

I am getting an error while upgrading to Windows 10. This has happened on 2 different computers, several times each, using different versions of the update assistant. Windows 7 pro is installed and activated on both. Is the update assistant broken? I haven't seen anyone else with this same issue yet.

I have tried running this from a clean install from two different known working media locations. (USB and Server Deployment)

I have tried running SFC, which found errors but was unable to repair them, and I have attempted to run dism, which fails every time. 

This is the error.

Windows10UpgraderApp.exe - System Error

The program can't start because api-ms-win-core-libraryloader-l1-1-1.dll is missing from your computer. Try reinstalling the program to fix this problem. 

OK   

Windows for home | Previous Windows versions | Install and upgrade

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Anonymous
2017-12-20T15:53:43+00:00

Fix found on technet.

https://social.technet.microsoft.com/Forums/windows/en-US/8ab132c5-fdf5-409d-92c8-a96ebfc3eeaa/error-while-upgrading-to-windows-10?forum=win10itprosetup#8ab132c5-fdf5-409d-92c8-a96ebfc3eeaa

"

This worked for me. 

Replace C:\Windows10Upgrade\wimgapi.dll with the one from C:\Windows\System32\wimgapi.dll

"

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  1. Anonymous
    2017-12-31T17:02:24+00:00

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  2. Anonymous
    2017-12-20T04:33:04+00:00

    Upgrade manually:

    What is the make and model of your computer?

     Have you checked the manufacturers website to determine compatibility?

    Check this List to Determine if Your Computer is Compatible with the Windows 10FallCreators Update1709

    perform the following tasks:

    12 Things You Should Do Before Installing Windows 10 Creators Update (Version 1709)**** 

    If the Windows 10 Upgrade Assistant becomes stuck or unresponsive at various percentages: 0%, 32%, 62%, 87%, 99%, please wait at least 4 to 7 hours. If you are updating through Windows Update, when the download reaches 99% disconnect from the Internet LAN (Ethernet) or Wi-Fi then proceed with the installation.

    If setup does not progress, close the wizard then restart your computer. Follow the instructions to upgrade manually using the Media Creation Tool or the Windows 10 ISO file.

    How to download official Windows 10 ISO files

    How to Upgrade to Windows 10 Creators Update version 1709 or Earlier Versions from Windows 7

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  3. Anonymous
    2017-12-19T22:10:58+00:00

    I have the same message and also running Windows 7 and downloaded today, 12/19/17

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  4. Anonymous
    2017-12-19T20:02:02+00:00

    I have also attempted to locate, register, and install this .dll, but I have not had any success. It is supposed to be part of a different package, but for some reason it is not working, and cannot be downloaded.

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