Fix Windows 10 Upgrade error: api-ms-win-core-libraryloader-l1-1-1.dll is missing from your computer

Microsoft has released a tool called Windows 10 Upgrade Assistant that allows any Windows 8.1, Windows 8, or even Windows 7 user to upgrade to Windows 10 with a simple GUI-based solution. This tool also allowed users to upgrade to Windows 10, or even get a Windows 10 ISO for an offline upgrade. Sometimes, when trying to update, you may encounter an error that api-ms-win-core-libraryloader-l1-1-1.dll is missing on your computer.

Well, this happens after the operating system has finished loading and installation has begun. This problem is mainly caused by Windows 7 systems.

The error message in the dialog looks like this:

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

Well, as we can see in this tip, not enough information has been provided. This is because we only know that a particular file is missing, but it lacks the original location and other attributes. So now we’ll take a look at how to fix this permanently on Windows 7.

The api-ms-win-core-libraryloader-l1-1-1.dll file is not a file that comes with Windows 7 or is not intended for Windows 7. This error mostly appeared after an update was released. Windows 10 Fall Creators Update. However, Microsoft has released an update for the Windows 10 Upgrade Assistant app to address this issue. However, if you have an older version or this error still occurs, you can use this workaround to fix the issue and upgrade to Windows 10 smoothly.

Hence the release of an update called Windows 10 Upgrade Assistant to fix issues with newer versions of Windows. For those of you using an older version and wanting to easily upgrade to Windows 10, there is an easy way to fix it here.

  • Open explorer and go to C: \ Windows \ System32 \
  • Look for wimgapi.dll there
  • When you find it, copy the file to C: \ Windows10Update \
  • You will be prompted to replace the existing file. Confirm it and accept any messages that require administrator rights.
  • Restart the update process and enjoy Windows 10!

Use a media creation tool

If you just can’t upgrade with the Windows 10 Upgrader app, you might be in luck with the Media Creation Tool. Some users who had the problem of api-ms-win-core-libraryloader-l1-1-1.dll missing error on your computer finally got it after doing method 1 after using the tool. media creation Update completed.

Another way to download Windows 10 ISO and use it to update your operating system without entering your product key is with the Media Creation Tool.

To use the media creation tool to work around the api-ms-win-core-libraryloader-l1-1-1.dll error on your computer, simply download the tool.

After downloading the tool, open the executable and select Upgrade this PC now when asked what you want. Then follow the instructions on the screen to complete the update process.