Last Updated on August 8, 2023 by Jake


Windows is one of the most used operating systems in the world but it isn’t a perfect one. There are some issues that persist from the previous Windows version to this day. Now some players report they are experiencing the “Api-ms-win-core-libraryloader-l1-1-1.dll file missing” error on Windows when they try to upgrade to Windows 10 when using some program or application. In this guide, I will list fixes that will help PC users solve the error.

Windows api-ms-win-core-libraryloader-l1-1-1.dll Error Fixes That’ll Help

The api-ms-win-core-libraryloader-l1-1-1. dll missing error is related to the Windows Upgrade Assistant tool. There are multiple reasons why Windows users are experiencing the error like the .dll file is missing, system file corruptions, malware, and more. The following are the fixes that will help players resolve the error.

Download The dll File

The simplest way to fix a dll missing error is to download the missing file and replace it. Download the api-ms-win-core-libraryloader-l1-1-1.dll from this link. Download the 32-bit version if you have a 32-bit Windows or 64-bit version of the file if you have a 64-bit OS. Download the file and go to “C:\Windows\System32” and paste the file here for the 32-bit version. For the 64-Bit version, go to “C:\Windows\SysWOW64” and paste the file here. This will fix the Windows api-ms-win-core-libraryloader-l1-1-1.dll file missing error.

Download the dll file from here.

Replace the dll File

Another fix for the pi-ms-win-core-libraryloader-l1-1-1.dll is missing error is by replacing the file with another .dll file. Go to C:\ Windows \ System32. Look for a file named ‘wimgapi.dll’ and copy it. Then go to C:\Windows10Upgrade and paste the copied file here. Then, close all the applications, restart your PC, and the error will be fixed.

Update Windows

If you haven’t updated your Windows in a while, then it is causing the api-ms-win-core-libraryloader-l1-1-1.dll missing error. Microsoft frequently releases updates with fixes and this error is occurring because you haven’t installed the update that fixes it. Open Windows Settings > Windows Update > Check for updates. Install all pending updates, restart your PC, and the error is now fixed.

Update windows from the settings menu.

Move The File

Another fix for the api-ms-win-core-libraryloader-l1-1-1.dll missing error is to replace the 32-bit version of the file with a 64-bit version. Go to C:\Windows\SysWOW64 and copy the “api-ms-win-core-libraryloader-l1-1-0.dll” file. Then go to C:\Windows\System32\ and paste the file here. This will fix the Windows api-ms-win-core-libraryloader-l1-1-1.dll missing error.

Install Visual C++ Redistributables

api-ms-win-core-libraryloader-l1-1-1.dll is a Visual C++ Redistributable file and the error can be fixed by updating/repairing Visual C++. Download the latest Visual C++ Redistributables and install them and the error will be fixed.


Use Media Creation Tool

An alternative method of updating Windows is by using the Media Creation tool. This method not only solves the ‘api-ms-win-core-libraryloader-l1-1-1.dll is missing’ issue but also avoids any future problems in the OS after the successful update of Windows.

To perform this, first, download the utility. Then, launch the App, select the ‘Upgrade this PC now option, and wait for the procedure to complete.

Solving DLL problems can be quite frequent for computer users as they often happen during Windows Updates or new application installations. If you are facing errors and issues with other PC games or your PC, then also see our hub for commonly occurring PC errors and their fixes.


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