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api-ms-win-crt-filesystem-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: 20.9 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-filesystem-l1-1-0.dll

Publisher: Microsoft Corporation
Issuer: Microsoft Code Signing PCA
Encryption algorithm: SHA1
Time stamp: Apr 5 06:03:54 2018 GMT

The api-ms-win-crt-filesystem-l1-1-0.dll file is a dynamic link library (DLL) that provides core CRT (C RunTime) functions related to filesystem operations in the Windows operating system. This DLL is part of the Microsoft Visual C++ Redistributable and is crucial for various applications that require low-level file manipulation.

MD5: 5248b0c6135e5215e9fb280e6b290cb2
SHA-1: a7da25c4ad49aecf106a73ca47033cd79b8e9716
SHA-256: 1eb779e853bcdc4bf06b00bd1425749f983972680f579ca9a53ac35ddd48f535

Where it is used

This DLL is commonly utilized by a wide range of software, including but not limited to:

  • Windows Explorer and File Management Tools
  • Developer tools and libraries such as Visual Studio or Visual C++
  • Third-party applications that require file system interactions

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

The following are common errors associated with this DLL:

  • "api-ms-win-crt-filesystem-l1-1-0.dll not found" or "missing api-ms-win-crt-filesystem-l1-1-0.dll": This error occurs when the DLL is missing, typically due to a system update or installation of software that requires this file.
  • Error loading api-ms-win-crt-filesystem-l1-1-0.dll: This can happen if the file is corrupted or not properly installed on the system.
api-ms-win-crt-filesystem-l1-1-0.dll was not found
The code execution cannot proceed because api-ms-win-crt-filesystem-l1-1-0.dll was not found
Failed to load api-ms-win-crt-filesystem-l1-1-0.dll
The procedure entry point ... could not be located in api-ms-win-crt-filesystem-l1-1-0.dll

1.
2a. 👉 Try to copy api-ms-win-crt-filesystem-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-filesystem-l1-1-0.dll C:\Program Files (x86)\Your program\
👉 Do not replace the files without first making backups.
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 recently uninstalled a program that required this DLL, reinstalling it may resolve the issue.
  2. Update Windows: Ensure your operating system is up-to-date as newer versions might include updates to this file.
  3. Manually replace api-ms-win-crt-filesystem-l1-1-0.dll: Download a fresh copy from the official Microsoft website or use tools like SysInternals' Process Explorer to locate and replace it. Be cautious and ensure you download from trusted sources only.

FAQ

Q: Can api-ms-win-crt-filesystem-l1-1-0.dll be a virus?

No, the official version of this DLL is safe. However, if you download it from untrusted sources or encounter unusual behavior after installation, proceed with caution.

Conclusion

The api-ms-win-crt-filesystem-l1-1-0.dll file is an essential component of the Windows operating system and many applications. Proper management and updates can help prevent issues related to this DLL, ensuring smooth operation of your software.


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

The api-ms-win-crt-filesystem-l1-1-0.dll file is a core operating system component of Microsoft Windows. It belongs to the Universal CRT (C Runtime) Library, which provides essential system routines for applications developed in C and C++. Specifically, this dynamic link library handles system-level filesystem operations, such as opening, reading, writing, and managing files and folders.

  • File Name: api-ms-win-crt-filesystem-l1-1-0.dll
  • Component: Microsoft Visual C++ Redistributable / Universal CRT
  • Developer: Microsoft Corporation

Standard File Locations

On a standard Windows installation, this file is located in the following system directories depending on your system architecture:

  • For 64-bit Windows:
    • 64-bit version of the file: C:\Windows\System32
    • 32-bit version of the file: C:\Windows\SysWOW64
  • For 32-bit Windows:
    • 32-bit version of the file: C:\Windows\System32

Note: Sometimes, applications also place a local copy of this file directly inside their own installation folders.

How to Fix the Error Without Downloading the DLL File

Downloading individual .dll files from random internet websites is unsafe and can introduce malware or compatibility issues. Instead, you can fix the missing or corrupted file error using official, built-in Windows tools and installers.

Method 1: Repair the Visual C++ Redistributable Package

The easiest way to restore this file is by letting the official Microsoft installer fix itself.

  1. Press the Windows Key + R to open the Run dialog box.
  2. Type appwiz.cpl and press Enter to open "Programs and Features".
  3. Scroll down the list to find Microsoft Visual C++ 2015 Redistributable (or 2015-2022).
  4. Right-click the entry and select Change.
  5. Click the Repair button in the pop-up window.
  6. Follow the on-screen prompts and restart your computer once completed.

Method 2: Run System File Checker (SFC)

Windows has a built-in utility that scans for missing or corrupted system files and automatically replaces them with healthy copies.

  1. Open the Windows Start menu and type cmd.
  2. Right-click Command Prompt and choose Run as administrator.
  3. Type the following command and press Enter: sfc /scannow
  4. Wait for the scan to hit 100%. If it finds errors, Windows will repair them.
  5. Restart your computer.

Method 3: Run Deployment Image Servicing and Management (DISM)

If the SFC tool cannot fix the file, the DISM tool can pull healthy system files directly from Windows Update servers.

  1. Open Command Prompt as an administrator again.
  2. Type the following command and press Enter: DISM /Online /Cleanup-Image /RestoreHealth
  3. Allow the process to complete successfully, then restart your PC.

Method 4: Install Pending Windows Updates

Because this file is part of the Universal CRT (a Windows component), keeping your OS updated will often automatically install or repair it.

  1. Open Settings (Windows Key + I).
  2. Go to Update & Security (or Windows Update).
  3. Click Check for updates.
  4. Install all available updates and restart your device.

Other versions:
️ api-ms-win-crt-filesystem-l1-1-0.dll 10.0.17134.12 32-bit (x86)
Microsoft Corporation