missing api-ms-win-core-libraryloader-l1-1-1.dll preventing me from upgrading to windows 10

Anonymous
2017-12-19T17:27:14+00:00

I'm currently on windows 7 and whenever I run Windows 10 upgrade assistant it gets to 99 then tells me I'm missing api-ms-win-core-libraryloader-l1-1-1.dll. I've tried running it on a clean boot, I've ran system cleanups to repair any corrupt files, I tried removing my antivirus, and still it won't work.

Does anyone have any other methods to fix so I can upgrade? any help appreciated!

Windows for home | Previous Windows versions | Install and upgrade

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  1. Anonymous
    2017-12-31T23:05:30+00:00

    I was one of the first to have the problem. Been researching it and found the solution late last night...much simpler than that posted.

    I'm running the upgrade right now. When you get the error do the copy/paste and hit Retry.

    Copy and Paste wimgapi.dll from C: Windows/System32/wimgapi.dll to C:Windows10Upgrade/wimgapi.dll

    The date on the System32 dll is 7/13/17.

    Good Luck

     wimgapi.dll doesnt exist in  C: Windows/System32 I can't find it anywhere although the appropriate folder does exist in the upgrade folder.  Where to download it? 

    Should I just use the reinstall discs I made for windows 7 when I first got the computer?

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  2. Anonymous
    2017-12-31T22:44:19+00:00

    wimgapi.dll doesnt exist in  C: Windows/System32 I can't find it anywhere although the appropriate folder does exist in the upgrade folder.  Where to download it? 

    Should I just use the reinstall discs I made for windows 7 when I first got the computer?

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  3. Anonymous
    2017-12-31T15:20:52+00:00

    Hmmmmm? Don't remember me saying download? Thought I said copy/paste (replace)???

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  4. Anonymous
    2017-12-31T13:16:41+00:00

    You made my day

    Thank you

    Gerd

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  5. Anonymous
    2017-12-31T03:46:44+00:00

    You don't have to download it. It is already present in C:\Windows\System32 folder. Just copy it and paste it in the C:\Windowsupdate folder.

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