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libomp140.x86_64.dll

Updated: Files Available: 23
Verified Metadata AI Analysis x86-64 (64 bit)

Download and install libomp140.x86_64.dll to fix missing or corrupted DLL errors.

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DLL Overview

Last Updated
Dec 15th, 2025
Filename
libomp140.x86_64.dll
Company
LLVM
Product
LLVM* OpenMP* Runtime Library
Description
LLVM* OpenMP* Runtime Library
Architecture
x86-64 (64 bit)
Metadata Consensus
23/23 Files 100%
Higher percentages indicate stronger agreement across versions. View available versions or browse repository metadata to compare differences between variants.

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About libomp140.x86_64.dll

libomp140.x86_64.dll is a DLL file (Dynamic Link Library) used by Windows programs to share code and resources. It allows multiple applications to use the same functions, improving performance and reducing redundancy.

Overview

What Is libomp140_x86_64.dll?

libomp140_x86_64.dll is the LLVM/Clang OpenMP runtime library for 64-bit Windows. It provides the core functions that applications need to run OpenMP multithreading, allowing software to split workloads across multiple CPU cores.

Programs compiled with Clang/LLVM or certain Intel/oneAPI toolchains often bundle or depend on this DLL when OpenMP support is enabled.

Common errors include:

"libomp140_x86_64.dll is missing"
"Unable to load libomp140_x86_64.dll"


What Does libomp140_x86_64.dll Do?

✔ OpenMP Parallel Runtime

libomp140_x86_64.dll provides the threading engine for OpenMP 4.x/5.x features, including:
  • Parallel for-loops (#pragma omp parallel for)
  • Task scheduling
  • CPU thread pooling
  • Synchronization (barriers, locks, critical sections)
  • Reduction operations

Any program built with Clang/LLVM that uses OpenMP requires this DLL at runtime.


Where Is libomp140_x86_64.dll Normally Located?

Since it is not a Windows system DLL, it normally resides in an application's own folders, such as:

  • C:/Program Files/AppName/bin/
  • C:/Program Files/AppName/
  • Next to the software's main executable

Development tools may also place it in:

  • C:/Program Files/LLVM/bin/
  • C:/Program Files (x86)/LLVM/bin/

Some portable scientific tools or compilers ship the DLL inside their own runtime folders.


What Software Uses This DLL?

You may encounter libomp140_x86_64.dll in:

  • Applications compiled with Clang/LLVM using -fopenmp
  • Scientific and engineering tools using OpenMP parallelism
  • Video, image, or audio processing utilities
  • Machine-learning or numerical computing programs
  • Software bundling Intel/LLVM OpenMP runtimes

Any application relying on OpenMP parallel execution may require this DLL.


Why Do libomp140_x86_64.dll Errors Occur?

✔ Missing or Deleted Runtime File

If the DLL was not packaged correctly or was removed manually.

✔ Corrupted Installation

Broken installers or updates can leave the OpenMP runtime incomplete.

✔ Wrong Version

Some programs require a specific OpenMP runtime version for compatibility.

✔ Wrong Folder Placement

If the DLL is not placed near the application executable, it may not be found.

✔ Antivirus or Security Quarantine

Security tools may flag unknown DLLs bundled with scientific/engineering software.


How To Fix libomp140_x86_64.dll Errors

1. Reinstall or Repair the Application

The simplest fix is to restore the version of the DLL that came with the software.
  • Reinstall the application
  • Ensure all runtime files (including OpenMP DLLs) are restored


2. Use the DLL Packaged With the Application

Do not mix OpenMP DLLs between programs.
  • Each application expects the specific OpenMP runtime it was built against


3. Check Antivirus Quarantine

If the file disappeared unexpectedly:
  • Open your antivirus security panel
  • Restore libomp140_x86_64.dll if it was flagged


4. Match Architecture

Ensure both application and DLL are 64-bit.


Summary

libomp140_x86_64.dll is the Clang/LLVM OpenMP runtime library for 64-bit Windows. It enables multithreaded execution in applications that use OpenMP.

Errors typically occur when the DLL is missing, corrupted, quarantined, or the wrong version. Reinstalling the software and restoring the correct OpenMP runtime is the most reliable fix.

File information is supported by Human Assisted Artificial Intelligence and should be used as a helpful tool. However, it is important to keep in mind that this information may not be up-to-date or entirely accurate.

Troubleshooting DLL Errors

Most errors involving libomp140.x86_64.dll occur because the DLL is missing, corrupted, or outdated. In many cases, reinstalling the related application or replacing the DLL resolves the issue. The steps below cover the most common and reliable ways to fix these errors.

Windows DLL Error Examples

This application has failed to start because libomp140.x86_64.dll was not found. Re-installing the application may fix this problem.
libomp140.x86_64.dll Not Found.

Fixes and Solutions

The first step in resolving DLL errors is to completely uninstall the affected software and reinstall its latest version. We know this does not always solve the problem, which is why DLLme exists. If reinstalling the application does not help, or if you are unsure which app is causing the error, follow the steps below. These are the most common solutions for fixing libomp140.x86_64.dll errors.

  • Repair Windows: Make sure Windows is fully updated, then open Windows Terminal or PowerShell as an administrator (search for “PowerShell” in the Start menu, right-click it, and choose “Run as administrator”). This allows you to repair the Windows component store and run the System File Checker (SFC).

    Repair the Windows component store so SFC can pull clean files:

    DISM /Online /Cleanup-Image /RestoreHealth

    Scan all protected system files and automatically repair problems:

    sfc /scannow
  • Uninstall & Reinstall: On this DLL page, check the Company/Product section to identify the related app, then fully uninstall it. If you plan to continue using it, reinstall the latest version. Be sure to save or back up any important data before uninstalling. Windows or antivirus software may sometimes quarantine DLL files, especially if the DLL is unfamiliar or appears suspicious. Check your antivirus quarantine or logs to determine if this is the cause of your issue.
  • Download the DLL: Download the latest 32-bit or 64-bit version of the DLL directly from our repository using the download button above. Most users will need the 64-bit version, but if you are unsure, or if a 64-bit version is not available, you can install both the 32-bit and 64-bit DLLs. DLLme verifies DLLs that come from our admins, partners, and trusted affiliates. User-uploaded files may be verified later if a trusted source is confirmed.
  • Register the DLL: Most DLL files do not need registration, but some DLLs are COM components and must be registered to work correctly. If registration is required, open Windows Terminal or PowerShell as an administrator.

    Register the DLL (you can also drag the DLL file into the window to automatically fill in its full path):

    regsvr32 "C:\path\to\libomp140.x86_64.dll"

    If you are registering a 32-bit DLL on 64-bit Windows, use the 32-bit RegSvr32:

    C:\Windows\SysWOW64\regsvr32 "C:\path\to\libomp140.x86_64.dll"

    Or open Windows Terminal/PowerShell in the DLL’s folder and run:

    regsvr32 libomp140.x86_64.dll

How to Install libomp140.x86_64.dll

To install libomp140.x86_64.dll, place the DLL file in the appropriate Windows system folder or in the same folder as the application’s .exe file. If you are not sure which version (32-bit or 64-bit) to use, you can safely install both.

On 64-bit versions of Windows, place 64-bit DLL files in:

C:\Windows\System32\libomp140.x86_64.dll

Place 32-bit DLL files in:

C:\Windows\SysWOW64\libomp140.x86_64.dll

Or place the DLL file next to the application’s .exe:

C:\path\to\exe\libomp140.x86_64.dll

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