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If you've ever encountered a 21.WINMM.dll error on your computer, you're not alone. Dynamic Link Library (DLL) files like 21.WINMM.dll play a crucial role in the functionality of Windows operating systems and software applications. Specifically, 21.WINMM.dll is responsible for handling multimedia operations, such as audio and video playback.
However, users may encounter issues such as missing or corrupted 21.WINMM.dll files, which can lead to errors and disruptions in multimedia-related tasks. In this article, we'll delve into the significance of DLL files, explore the role of "21.WINMM.dll," and offer solutions for common issues related to this file.
What is 21.WINMM.dll?
A DLL (Dynamic Link Library) file is a type of file that contains code and data that can be used by more than one program at the same time. The 21.WINMM.dll file specifically is part of the Windows operating system and is responsible for providing functions related to multimedia operations, such as playing sound files and controlling audio devices. When it comes to the software Microsoft Visual Studio Enterprise 2015, the 21.WINMM.dll file plays a crucial role in ensuring that multimedia functionalities are properly supported within the development environment.
This is important because it allows developers using Microsoft Visual Studio Enterprise 2015 to integrate multimedia features, such as audio and video, into the applications they are building, enhancing the overall user experience and functionality of the software they create.
Common Issues and Errors Related to 21.WINMM.dll
Although essential for system performance, dynamic Link Library (DLL) files can occasionally cause specific errors. The following enumerates some of the most common DLL errors users encounter while operating their systems:
- Cannot register 21.WINMM.dll: This error is indicative of the system's inability to correctly register the DLL file. This might occur due to issues with the Windows Registry or because the DLL file itself is corrupt or improperly installed.
- 21.WINMM.dll could not be loaded: This error indicates that the DLL file, necessary for certain operations, couldn't be loaded by the system. Potential causes might include missing DLL files, DLL files that are not properly registered in the system, or conflicts with other software.
- 21.WINMM.dll is either not designed to run on Windows or it contains an error: This message implies that there could be an error within the DLL file, or the DLL is not compatible with the Windows version you're running. This could occur if there's a mismatch between the DLL file and the Windows version or system architecture.
- 21.WINMM.dll not found: This indicates that the application you're trying to run is looking for a specific DLL file that it can't locate. This could be due to the DLL file being missing, corrupted, or incorrectly installed.
- 21.WINMM.dll Access Violation: The error signifies that an operation attempted to access a protected portion of memory associated with the 21.WINMM.dll. This could happen due to improper coding, software incompatibilities, or memory-related issues.
File Analysis: Is 21.WINMM.dll a Virus?
The file named 21.WINMM.dll has successfully passed tests from various virus detection tools with no flagged security issues. This is certainly good news as it minimizes the risk to your computer's overall health and performance.
Maintaining Security
However, even with such reassuring results, not letting your guard down is important. Regular system updates and routine security scans are pivotal in maintaining your computer's security and operational effectiveness. This way, you can continue to confidently use 21.WINMM.dll as part of your daily computer activities.
How to Remove 21.WINMM.dll
If the need arises to completely eliminate the 21.WINMM.dll file from your system, follow these steps cautiously. When dealing with system files, it's crucial to exercise care to avoid unexpected system behavior.
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Locate the File: Begin by finding the whereabouts of 21.WINMM.dll on your computer. You can do this by right-clicking the file (if visible) and selecting Properties, or by employing the search feature in File Explorer.
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Safeguard Your Data: Before proceeding, ensure you have a backup of important data. This ensures that your vital files are secure in case of any mishaps.
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Remove the File: Once you've pinpointed 21.WINMM.dll, right-click on it and choose Delete. This action moves the file to the Recycle Bin.
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Empty the Recycle Bin: After deleting 21.WINMM.dll, don't forget to empty the Recycle Bin to entirely purge the file from your system. Right-click on the Recycle Bin and select Empty Recycle Bin.
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Conduct a System Scan: Following the file removal, execute a comprehensive system scan using a reputable antivirus tool to ensure there are no lingering file remnants or potential threats.
Note: It's important to note that if 21.WINMM.dll is tied to a specific program, its removal may impact the program's functionality. If you encounter issues post-deletion, consider reinstalling the software or seeking assistance from a tech expert.
Repair 21.WINMM.dll Error Automatically

In this guide, we will fix 21.WINMM.dll errors automatically.

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Click the Download Fortect button.
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Save the Fortect setup file to your device.

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Locate and double-click the downloaded setup file.
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Follow the on-screen instructions to install Fortect.
Perform a Clean Boot

How to perform a clean boot. This can isolate the issue with 21.WINMM.dll and help resolve the problem.

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In the General tab, select Selective startup.
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Uncheck Load startup items.

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Go to the Services tab.
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Check Hide all Microsoft services.
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Click Disable all.

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Open Task Manager.
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Go to the Startup tab.
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Disable all the startup programs.
Run the Deployment Image Servicing and Management (DISM) to Fix the 21.WINMM.dll Errors

In this guide, we will aim to resolve issues related to 21.WINMM.dll by utilizing the (DISM) tool.

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Press the Windows key.
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Type
Command Prompt
in the search bar. -
Right-click on Command Prompt and select Run as administrator.

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In the Command Prompt window, type
DISM /Online /Cleanup-Image /RestoreHealth
and press Enter. -
Allow the Deployment Image Servicing and Management tool to scan your system and correct any errors it detects.
Software that installs 21.WINMM.dll
Software | File MD5 | File Version |
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01989A61DB16BE1DD41A67E78624F65453160E94 | 2015 |