How to Fix the "Api-ms-win-core-string-l1-1-0.dll is Missing" Error on Windows

The "Api-ms-win-core-string-l1-1-0.dll is missing" error usually occurs when launching certain programs or games, especially on older versions of Windows. This issue arises due to a missing or corrupted Dynamic Link Library (DLL) file, which is essential for Windows and many applications to function properly. Below are several effective methods to resolve this error.

1. Update Windows

This problem often occurs because of outdated system files. Make sure your Windows system is fully updated. Microsoft regularly releases updates to fix errors and restore missing files:

  • Go to "Settings" (Win + I) and open "Update & Security."
  • Click "Check for updates" and install any available updates.

2. Install Visual C++ Redistributable

The Visual C++ Redistributable packages contain various DLL files required to run programs. Download and install the latest version of Visual C++ from the official Microsoft website.

  • Visit the official Microsoft download page and download the appropriate installer.
  • After installation, restart your computer and check if the issue is resolved.

3. Repair System Files with SFC and DISM Commands

Use the SFC and DISM command tools to automatically locate and fix corrupted system files:

  • Open Command Prompt as an administrator (search for "cmd," right-click, and select "Run as administrator").
  • Type sfc /scannow and press Enter. Wait for the process to complete.
  • Next, type DISM /Online /Cleanup-Image /RestoreHealth and press Enter again.

These commands will attempt to repair or restore any damaged system files, including missing DLLs.

4. Reinstall the Program Causing the Error

Sometimes the issue may be within the program itself, which could be calling the library. Try uninstalling and reinstalling it:

  • Go to "Control Panel" → "Programs and Features."
  • Find the application, uninstall it, and restart your computer.
  • Then, download the latest version of the program from its official website and reinstall it.

5. Download the Missing DLL File from a Trusted Source

If none of the previous solutions work, you can try downloading the missing "Api-ms-win-core-string-l1-1-0.dll" file from a trusted source, such as DLL-Files. Be cautious and avoid suspicious websites to prevent downloading viruses.

Place the downloaded file in C:\Windows\System32 (for a 64-bit system) or C:\Windows\SysWOW64 (for a 32-bit system), and restart your computer.