Understanding MSVCP140.dll Errors: Causes and Solutions

Encountering a missing MSVCP140.dll error can be both frustrating and confusing, especially when it interrupts important tasks or prevents your favorite applications from running. This issue is common among Windows users, particularly when launching software that depends on Microsoft Visual C++ Redistributable packages. The good news is that resolving this error is typically straightforward if you understand the underlying causes and follow the correct steps.

Causes of the MSVCP140.dll Error

The MSVCP140.dll file is a vital component of the Microsoft Visual C++ Redistributable for Visual Studio 2015 (and later versions). It is required by many modern applications—especially games, professional software, and utilities—that are built using Visual Studio. Several issues can trigger a missing or corrupted MSVCP140.dll error on your computer:

1. Absent or Corrupted DLL Files:
   If the MSVCP140.dll file is deleted or becomes corrupted due to installation errors, improper system shutdowns, or malware attacks, Windows will not be able to locate the file when it's needed by an application.
2. Incomplete or Failed Software Installations:
   Sometimes, when you install a new program, the necessary Visual C++ components do not install correctly. This might happen due to interrupted downloads, insufficient permissions, or conflicts with existing system files.
3. Missing Visual C++ Redistributable Packages:
   If you haven’t installed the Visual C++ Redistributable for Visual Studio 2015, 2017, 2019, or 2022, applications that depend on these packages will fail to find the MSVCP140.dll file and trigger the error.
4. System Updates and File Conflicts:
   Windows updates or other software installations can sometimes overwrite or remove important DLL files. This can result in conflicts between different program versions or missing files required by certain apps.

Step-by-Step Guide to Fix the MSVCP140.dll Error

If you want to resolve the MSVCP140.dll error quickly and safely, follow these steps. Do not download DLL files from unknown or unofficial third-party websites, as these can contain malware or incompatible file versions.

1. Restart Your Computer
   Before taking more complex steps, try restarting your computer. Occasionally, a simple reboot can resolve temporary glitches or issues related to system files.
2. Install or Repair the Microsoft Visual C++ Redistributable
   The most effective way to resolve MSVCP140.dll issues is to install or repair the Visual C++ Redistributable package. Here’s how:
   1. Go to the Official Microsoft Download Center
      Visit the official Microsoft website and search for “Visual C++ Redistributable.” For most applications, you’ll need the version for Visual Studio 2015, 2017, 2019, and 2022.
      Direct link: https://learn.microsoft.com/en-us/cpp/windows/latest-supported-vc-redist
   2. Download the Latest Package
      Select the appropriate version based on your system (x86 for 32-bit, x64 for 64-bit, or ARM64). Download the installer file to your computer.
   3. Run the Installer
      Double-click the downloaded file and follow the on-screen prompts to install or repair the package. If prompted, choose the “Repair” option to fix existing installations.
   4. Restart Your Computer
      Reboot the system to ensure all components are properly updated.
3. Check for Windows Updates
   Make sure your operating system is up to date, as some updates might include fixes for issues affecting DLL files.
   • Go to Settings → Update & Security → Windows Update, then click “Check for updates.”
   • Install all available updates and restart if required.
4. Reinstall the Program Showing the Error
   If the error persists when launching a specific application, uninstall and reinstall that program:
   • Open Control Panel → Programs and Features.
   • Locate the affected software, right-click, and select “Uninstall.”
   • Download the latest version from the publisher’s website and reinstall the program.
5. Run System File Checker (SFC)
   Use the built-in Windows System File Checker tool to scan and repair corrupt or missing system files.
   • Open Command Prompt as an administrator (right-click and select “Run as administrator”).
   • Type sfc /scannow and press Enter.
   • Wait for the process to complete and follow any recommended actions.
6. Scan for Viruses and Malware
   Malicious software can corrupt or delete essential DLL files. Run a full system scan using Windows Defender or your preferred antivirus software to detect and remove threats.
7. Advanced Users: Re-register the DLL
   If you’re comfortable with command-line tools, you can try to manually register the MSVCP140.dll file.
   • Open Command Prompt as an administrator.
   • Type regsvr32 MSVCP140.dll and press Enter.
   • If the DLL is present in the system folder, this command will re-register it. If it’s missing, use the steps above to reinstall the redistributable.
8. Do Not Download DLLs from Third-Party Sites
   While it might be tempting to download a “quick fix” from random websites, this poses significant risks, including malware infections, system instability, and further errors. Always use official sources like Microsoft.

Conclusion

The MSVCP140.dll error, while common, is almost always resolvable by installing or repairing the appropriate Microsoft Visual C++ Redistributable package. Avoid the pitfalls of unofficial downloads by sticking with trusted solutions: use Microsoft’s website, keep your system updated, and follow the safety-first approach detailed above.

By understanding why these errors occur and following the recommended steps, you can resolve MSVCP140.dll issues quickly, restore functionality to your applications, and prevent future disruptions. Should the error persist after trying all these solutions, consider seeking additional support from the application’s official help channels or a professional IT technician. Remember: patience and adherence to trusted sources are your best allies in maintaining a secure and error-free Windows environment.