The api-ms-win-crt-convert-l1-1-0_1.dll file is used by applications that require the ConvertAPI, which is a set of functions that convert between different data types or character sets. This file is typically installed along with other Visual C++ Redistributable files, and is required for some applications to run properly.
If you encounter an error message stating that api-ms-win-crt-convert-l1-1-0_1.dll is missing, it usually means that the Visual C++ Redistributable package is not installed on your computer, or that the file has become corrupted or deleted. To resolve this issue, you can try reinstalling the Microsoft Visual C++ Redistributable package from Microsoft's website.
You can also try running a System File Checker (SFC) scan, which will scan your system files for any missing or corrupted files and repair them if possible. To run an SFC scan, open a command prompt as an administrator and type the following command:
sfc /scannow
This will scan your system files and attempt to repair any issues it finds.
In some cases, a malware infection or other system issues can cause the api-ms-win-crt-convert-l1-1-0_1.dll file to become corrupted or deleted. If reinstalling the Visual C++ Redistributable package and running an SFC scan do not resolve the issue, you may need to run a malware scan or seek further assistance from a computer technician.