Fix api-ms-win-crt-convert-l1-1-0.dll Missing Error on Windows
What is api-ms-win-crt-convert-l1-1-0.dll and why do you need it?
If you are a Windows user, you may have encountered an error message that says something like "The program can't start because api-ms-win-crt-convert-l1-1-0.dll is missing from your computer. Try reinstalling the program to fix this problem." This error can prevent you from running certain applications or games that depend on this DLL file. But what is api-ms-win-crt-convert-l1-1-0.dll and why do you need it? In this article, we will explain what this file is, what causes this error, and how to fix it.
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What are DLL files and how do they work?
DLL stands for Dynamic Link Library, which is a type of file that contains code and data that can be used by multiple programs at the same time. DLL files are designed to make Windows applications more modular, efficient, and reusable. For example, instead of having each program include its own code for common functions, such as printing or opening dialog boxes, these functions can be stored in a DLL file that can be shared by multiple programs. This way, the programs can load faster, run faster, and take less disk space on your computer.
What causes api-ms-win-crt-convert-l1-1-0.dll errors?
Missing or corrupted file
The most common cause of api-ms-win-crt-convert-l1-1-0.dll errors is that the file is missing or corrupted on your computer. This can happen if you accidentally delete the file, if another program overwrites or breaks it, or if it gets damaged by a power outage or a disk failure. When this happens, Windows cannot find or load the file when it tries to run an application that depends on it.
Outdated or incompatible software
Another possible cause of api-ms-win-crt-convert-l1-1-0.dll errors is that you have outdated or incompatible software on your computer. For example, if you have an older version of Visual Studio or Windows that does not support the latest version of api-ms-win-crt-convert-l1-1-0.dll, or if you have a different version of Windows than the one that the application was designed for, you may encounter DLL errors. This is because different versions of software may have different dependencies, requirements, or compatibility issues.
Malware infection or registry issues
A less common but more serious cause of api-ms-win-crt-convert-l1-1-0.dll errors is that your computer is infected by malware or has registry issues. Malware is malicious software that can harm your computer or steal your data. Some malware can modify, delete, or replace DLL files on your computer, causing them to malfunction or disappear. Registry issues are problems with the database that stores the settings and options for Windows and the programs on your computer. If the registry is corrupted, damaged, or contains invalid entries, it can cause DLL errors as well.
How to fix api-ms-win-crt-convert-l1-1-0.dll errors?
Fortunately, there are several ways to fix api-ms-win-crt-convert-l1-1-0.dll errors on your computer. Depending on the cause and severity of the error, you may need to try one or more of the following methods:
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Download and install the latest Visual C++ Redistributable package
One of the easiest and most effective ways to fix api-ms-win-crt-convert-l1-1-0.dll errors is to download and install the latest Visual C++ Redistributable package from Microsoft. This package contains the runtime components of Visual C++ libraries that are required by many Windows applications, including api-ms-win-crt-convert-l1-1-0.dll. To download and install the latest Visual C++ Redistributable package, follow these steps:
Go to and select the appropriate version for your system (x86 for 32-bit Windows or x64 for 64-bit Windows).
Click on the Download button and save the file to your computer.
Run the file and follow the instructions to install the package.
Restart your computer and try to run the application that was giving you the error.
If this method does not work, you may need to uninstall any previous versions of Visual C++ Redistributable packages from your computer before installing the latest one. To do this, go to Control Panel > Programs > Programs and Features and look for any entries that start with Microsoft Visual C++. Select them and click on Uninstall. Then, follow the steps above to install the latest package.
Run Windows Update and install the latest updates
Another way to fix api-ms-win-crt-convert-l1-1-0.dll errors is to run Windows Update and install the latest updates for Windows. This can help you update your system files, drivers, security patches, and other components that may affect DLL files. To run Windows Update and install the latest updates, follow these steps:
Click on the Start button and type "update" in the search box.
Select Check for updates from the list of results.
Wait for Windows to scan for available updates and click on Install updates if there are any.
Restart your computer and try to run the application that was giving you the error.
If this method does not work, you may need to manually download and install some specific updates that are related to api-ms-win-crt-convert-l1-1-0.dll. To do this, go to and look for any updates that match your version of Windows and Visual Studio. Download them and run them on your computer.
Run System File Checker and repair corrupted system files
A third way to fix api-ms-win-crt-convert-l1-1-0.dll errors is to run System File Checker and repair corrupted system files on your computer. System File Checker is a built-in tool that can scan and restore the integrity of system files, including DLL files. To run System File Checker and repair corrupted system files, follow these steps:
Click on the Start button and type "cmd" in the search box.
Right-click on Command Prompt from the list of results and select Run as administrator.
Type "sfc /scannow" (without quotes) and press Enter.
Wait for the scan to complete and follow any instructions that appear on the screen.
Restart your computer and try to run the application that was giving you the error.
If this method does not work, you may need to run another tool called DISM (Deployment Image Servicing and Management) that can repair the Windows image and fix any issues with system files. To run DISM, follow these steps:
Open Command Prompt as administrator as described above.
Type "DISM /Online /Cleanup-Image /RestoreHealth" (without quotes) and press Enter.
Wait for the process to complete and follow any instructions that appear on the screen.
Restart your computer and try to run the application that was giving you the error.
How to prevent api-ms-win-crt-convert-l1-1-0.dll errors in the future?
Now that you know how to fix api-ms-win-crt-convert-l1-1-0.dll errors, you may wonder how to prevent them from happening again in the future. Here are some tips that can help you avoid DLL errors in the future:
Keep your software updated. Make sure you have the latest version of Windows, Visual Studio, and any other programs that use DLL files. This can help you avoid compatibility issues and bugs that may cause DLL errors.
Scan your system for malware. Use a reliable antivirus or anti-malware program to scan your computer regularly and remove any malicious software that may harm your DLL files or other system components.
Back up your files. Create a backup of your important files, including DLL files, on an external drive or a cloud service. This can help you restore your files in case they get lost, damaged, or deleted by accident or by malware.
Conclusion
In conclusion, api-ms-win-crt-convert-l1-1-0.dll is a DLL file that is required by many Windows applications, especially those that use Visual C++ libraries. If this file is missing or corrupted on your computer, you may encounter an error message that prevents you from running certain applications or games. To fix this error, you can try one or more of the following methods: download and install the latest Visual C++ Redistributable package, run Windows Update and install the latest updates, run System File Checker and repair corrupted s