How To Fix ‘Api-Ms-Win-Crt-Runtime-l1-1-0.Dll’ Is Missing Error

More than a few Windows customers have been complaining for the past few years about an error message referring to the current version of iTunes that appears when they try to utilise the latest version of the software. Consequently, iTunes on PC isn’t working.

Additionally, some users complained that they couldn’t utilise Adobe apps, clever TFP software, Skype, Autodesk and many other applications because of the issue. If you’re one of the many people who are having this problem, then read this post carefully. You’ll find the best answer here.


Prior to doing anything else, let’s find out what the dll error code in question is all about: Visual C + + redistribution’s Universal CRT is either not installed correctly or the Api-Ms-Win-Crt-Runtime-l1-1-0.Dll file is corrupted or missing when this problem occurs.

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Understanding the Error

The ‘Api-Ms-Win-Crt-Runtime-l1-1-0.dll is Missing’ error typically appears when trying to open an application or software in Windows. This error message indicates that the specific DLL file, essential for the application to run, is either not present on the system or is corrupted.

What is Api-Ms-Win-Crt-Runtime-l1-1-0.dll?

Api-Ms-Win-Crt-Runtime-l1-1-0.dll is a file component of the Microsoft Visual C++ Redistributable for Visual Studio. This DLL file is vital for applications developed using the Visual Studio software, as it contains necessary procedures and driver functions.

Causes of the Error

The error can be caused by various factors, making it crucial to identify the root cause for effective troubleshooting:

  1. Missing or Corrupted DLL File: The most straightforward cause is that the DLL file is missing from the system or has become corrupted.
  2. Outdated Windows OS: An outdated Windows operating system might not support the necessary files.
  3. Faulty Application Installation: Sometimes, improper installation of an application can lead to missing DLL files.
  4. Malware or Virus Infection: Malware or viruses can corrupt or delete DLL files, including the Api-Ms-Win-Crt-Runtime-l1-1-0.dll file.

Implications of the Error

This error can hinder the functionality of various applications, especially those that require the Microsoft Visual C++ Redistributable package to function. It can disrupt work, cause inconvenience, and affect productivity, especially in environments reliant on specific software.

How to Fix the Api-Ms-Win-Crt-Runtime-l1-1-0.Dll Missing Error in Windows

Even though it can be found in a few different places, most often in Program files/ iTunes, an api-ms-wincrt-runtime-|1-1-0.dll error will occur when it encounters this file. With this in mind, let’s get right down to the business of finding a solution for your problem.

Method 1: Api-Ms-Win-Crt-Runtime-l1-1-0.Dll can be replaced by a local copy

Although this solution appeared to work for some people, it appears to be a short-term repair because the problem reappears after an update to this DLL file. But this way worked every time I tried to fix Api-Ms-Win-Crt-Runtime-l1-1-0.Dll Error using this method.

Data from the programme must be copied to multiple locations where you can find the api-ms-win-crt-runtime-/1-1-0.dll file. This file is supported and replaced by files/common files/Apple/Apple apps. You can do the same by following the following steps:

  1. The first step is to ensure that any Apple-related applications are closed.
  2. api-ms-win-crt-runtime-1-11-0.dll is copied to the Apple application store from the programme files/common files/Apple.
  3. Paste the copied file into Program Files/iTunes.
  4. Lastly, restart iTunes and see if the problem has been fixed.

This procedure, if you’re looking for a one-time, long-term treatment.

Method 2: Installing the Universal C Runtime Update

The universal (run time) update in Windows can also help you resolve this problem. In order to get the results you want, this procedure is quite accurate. Please note that this update installed automatically via Windows Update.

If you have a large number of pending updates, there is a manual process you can use. Simply follow the instructions outlined below and you’ll be back to work in no time.

  1. The first step is to visit Microsoft’s official download site.
  2. Next, select the package that corresponds to your operating system.
  3. After that, select your language and click on the download icon to begin the process of downloading the app.
  4. In Step 4, you’ll need to open your download’s installer and follow the on-screen instructions that appear on your screen to complete the installation.
  5. Finally, restart your computer and see whether the error persists.

Method 3: Third-party Redistributable Package for Visual Studio 2015 Installation

If you are using Visual Studio 2015, we strongly suggest installing the Visual C + + redistributable package. This package contains all the files needed by iTunes. Because of this, if you’re experiencing a problem with your system because of a missing DLL, you’ll be able to use this package to fix it.

You should thus obtain the Visual C++ 2015 Redistributable Package, install it, and start using it right away.

Method 4: Using an older version of iTunes.

If all of the previous fixes have failed and you are still seeing the issue, you can try reinstalling the older version of iTunes. As it is known, the mistake began after iTunes was updated.

Please uninstall and reinstall the previous version instead. However, this can be quite time-consuming. This is how you do it if you want the old version of iTunes:-

  1. The first step is to type “appwiz.cpl” into the run dialogue box and click enter.
  2. We can access programs and features in this step.
  3. Installing a programme signed by Apple Inc. is as simple as clicking the publisher button and the top of the column.
  4. Uninstall all software signed by Apple Inc by right-clicking on it.
  5. Restart your computer to complete the process.
  6. Download the previous version of the programme from iTunes installers.
  7. Open iTunes installer and follow on-screen instructions to install an older version of the software on your computer. Check to check whether the error message “win-crt-runtime-l1-1-1.dll is missing” has gone away when the installation is complete by rebooting your computer again.

Advanced Solutions

If the error persists, explore these advanced solutions:

  1. Manually Download the DLL File: As a last resort, you can download the required DLL file from a reliable source and place it in the application’s folder or the Windows system directory.
  2. Use System File Checker (SFC): Run the SFC tool to repair corrupted system files. Open Command Prompt as an administrator and type sfc /scannow.
  3. Update Drivers: Outdated system drivers can sometimes cause DLL errors. Ensure all drivers are up to date.
  4. Perform a System Restore: If the issue started recently, performing a system restore to a point where the error did not exist may resolve the problem.

Preventive Measures

To minimize the risk of encountering such errors in the future:

  • Regularly update your Windows OS and drivers.
  • Install all necessary Windows software components and libraries.
  • Use a reliable antivirus program to protect your system from malware.
  • Avoid downloading DLL files from untrusted sources, as they can be harmful.

Understanding DLL Files in Windows

DLL files are a crucial component of Windows operating systems, allowing multiple programs to use the same functionality. Understanding how these files work and their dependencies can significantly aid in troubleshooting and maintaining a healthy system.

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While dealing with errors might be excruciating, you must maintain your composure. Don’t let this “Api-Ms-Win-Crt-Runtime-l1-1-0.Dll” error message keep you from doing what you need to do in your day-to-day life. Hopefully, this article solved your problem and allowed you to utilise iTunes and other applications once more.