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api-ms-win-crt-environment-l1-1-0.dll - Analyze and How to Fix Errors

★★★★★ Verified File (27.08.2026)

Description


Creation date: 20.11.2015 06:52:51
File version: 10.0.10586.15
Antivirus scan: ✅ OK
Category: System
File size: 19.4 kb.
Architecture: 64-bit (x64)
✅ This file is compatible with 64-bit Windows and ❌ will not work on a 32-bit operating system.
How to determine your system architecture: Press keys Win+R , enter symbols wmic os get osarchitecture , press Enter.

Digital file signature api-ms-win-crt-environment-l1-1-0.dll

Publisher: Microsoft Corporation
Issuer: Microsoft Code Signing PCA
Encryption algorithm: SHA1
Time stamp: Apr 5 06:03:52 2018 GMT

This particular DLL is part of the Microsoft C Runtime Library (CRT), which provides essential functions for Windows applications. It contains various API entries and functions related to environment variables, such as duplicate environment variable values, search and modify operations on environment strings.

MD5: 3fd2ef731aa142c292656b599ced4891
SHA-1: 2a42ccb83392372e7a37f35433d6d7de8989693e
SHA-256: 2067e743c61c11d29d09744e20d091920821129e7263a6ec9989a2e2f21e1d0a

Where it is used

This DLL file is commonly used by applications that require dynamic access to system environment variables. It may be associated with Microsoft Visual C++ Redistributable, Windows Update processes, and other system components that need to interact with the environment settings of a running operating system.

Errors related to api-ms-win-crt-environment-l1-1-0.dll

  • api-ms-win-crt-environment-l1-1-0.dll not found
  • missing api-ms-win-crt-environment-l1-1-0.dll
  • error loading api-ms-win-crt-environment-l1-1-0.dll

These errors can cause application crashes, system instability, or prevent certain programs from running correctly. They often occur due to corrupted DLL files, missing dependencies, or issues with the Windows Registry.

File security

The file is considered safe and part of the Windows operating system. It comes from trusted sources and should not be a concern for virus detection tools. However, any missing or corrupted DLL files can pose risks if they are replaced by malicious ones.

api-ms-win-crt-environment-l1-1-0.dll was not found
The code execution cannot proceed because api-ms-win-crt-environment-l1-1-0.dll was not found
Failed to load api-ms-win-crt-environment-l1-1-0.dll
The procedure entry point ... could not be located in api-ms-win-crt-environment-l1-1-0.dll

1.
2a. 👉 Try to copy api-ms-win-crt-environment-l1-1-0.dll C:\Program Files\Your program\
2b. Also try to copy to bin, lib folders.
2c. Try to copy api-ms-win-crt-environment-l1-1-0.dll C:\Program Files (x86)\Your program\
👉 It is recommended to back up the files before replacement.
How do I switch to the current Windows directory?
- Press and hold the key "win" on the keyboard and press the key "r" , then write %windir% and press the key Enter.
How to switch to the directory Program Files (x86) ?
- Press Win+R then enter %ProgramFiles(x86)% and after press Enter.

How to fix errors

  1. Reinstall the program: If you suspect that a specific application is causing issues, try reinstalling it. This often resolves missing or corrupted DLL files.
  2. Update Windows: Ensure your operating system is up-to-date with the latest patches and updates to maintain compatibility and security.
  3. Manually replace api-ms-win-crt-environment-l1-1-0.dll (if necessary): Use this page as a reference for downloading a legitimate copy of the DLL file. Be cautious when replacing system files, and always back up important data before making any changes.

FAQ

Q: Is api-ms-win-crt-environment-l1-1-0.dll safe? Yes, it is a legitimate file from Microsoft and part of the Windows operating system.

Q: Can I replace this DLL file myself? In most cases, no. Manual replacement should only be done by advanced users who understand the risks involved.

Conclusion

The api-ms-win-crt-environment-l1-1-0.dll file is an integral part of your Windows system and applications. Understanding its role, addressing any errors related to it, and ensuring the safety of this file can significantly improve the stability and performance of your operating system.


File Description: api-ms-win-crt-environment-l1-1-0.dll

The file api-ms-win-crt-environment-l1-1-0.dll is a core Dynamic Link Library (DLL) component of the Microsoft Visual C++ Redistributable for Visual Studio. It belongs to the Universal CRT (C Runtime), which provides essential runtime environment functions to applications built using Visual Studio.

Standard File Location

On a standard 64-bit Windows system, you will find this file in two primary locations:

  • 64-bit version: C:\Windows\System32\
  • 32-bit version: C:\Windows\SysWOW64\

How to Fix the Error Without Downloading the DLL File

Downloading individual DLL files from third-party websites is unsafe and can introduce malware. You can fix this error securely using built-in Windows tools and official installers already present on your system.

Method 1: Repair the Visual C++ Redistributable

Most missing Universal CRT errors happen because the existing installation is corrupted. You can fix it via the Control Panel.

  1. Press Windows Key + R, type appwiz.cpl, and press Enter.
  2. Scroll through the list to find Microsoft Visual C++ 2015-2022 Redistributable (or 2015, 2017, 2019).
  3. Right-click the application and select Change.
  4. Click the Repair button in the pop-up window.
  5. Repeat this process for both the (x86) and (x64) versions if both are installed.
  6. Restart your computer.

Method 2: Run SFC and DISM Tools

Windows has built-in system repair tools that can automatically restore missing or corrupted system files from a secure local cache.

  1. Press the Windows Key, type cmd, right-click Command Prompt, and select Run as administrator.
  2. Type the following command to check system files and press Enter: sfc /scannow
  3. Wait for the scan to finish (10–15 minutes).
  4. If errors remain, type this command to repair the system image and press Enter: DISM /Online /Cleanup-Image /RestoreHealth
  5. Restart your computer after completion.

Method 3: Run Windows Update

The Universal CRT framework is distributed as a system update by Microsoft. Installing pending Windows updates often restores the missing components.

  1. Open Settings (Press Windows Key + I).
  2. Go to Update & Security (or Windows Update on Windows 11).
  3. Click Check for updates.
  4. Download and install all critical and optional updates, then restart your PC.
Other versions:
️ api-ms-win-crt-environment-l1-1-0.dll 10.0.19041.685 32-bit (x86)
Microsoft Corporation