Winmm.dll is a file that is directly related to Windows Multimedia API for Joysticks and audio functions. A lot of users have experienced several errors associated with Winmm.dll missing. There are many reasons of causing the Winmm.dll is a missing error. However, this error is common and can be solved easily by following some of the methods.

How to Fix Winmm.dll is Missing Error on Windows 10?

Usually, errors like these are caused due to damage in Windows settings, Changes in Registry keys, or the Windows Multimedia API files are corrupted. However, few methods will help you to resolve the error.

Five different methods will help you to fix the error Winmm.dll is missing on Windows 10. Let’s check out a step-by-step guide of these methods.

Also Read- Best DLL Fixer Software For Windows

Method 1: Restore winmm.dll file from the Recycle Bin

This is one of the most common methods to fix the error, as someone might mistakenly delete the winmm.dll file then you can restore it back from Recycle Bin. Follow the given steps to restore the winmm.dll file from the Recycle Bin:

  1. First, turn on your PC and open Recycle Bin folder
  2. Now, look for the winmm.dll file and do right-click on it
  3. From there select a Restore option, the file will be relocated
  4. After that, try to run the program and check whether the error is solved or not.

Method 2: System Restore

If you have recently changed the system, and you think that change causes the error, you must restore the system. It might solve the winmm.dll error.

Restore the system changes by following the given steps:

  1. Open the RUN dialogue box by pressing Windows + R Keys.
  2. There type “rstrui” and click on OK.
    Restore system
  3. A system restore window will open
  4. There click on Next and tick the checkbox to show more restore points, to check the full list.
    System restore window
  5. From the list, select the restore point of the date which you think was working properly.
  6. Then Press Next and click on Finish.
    Show restore points
  7. After this, do restart your computer and check whether the winmm.dll error is solved or not.

Method 3: Temporarily Disable the Antivirus

Many Antivirus software detects malicious files and does not allow them to run in the system. So, in this case, there might be a problem with antivirus software as it might think the Winmm.dll file is malware and because of that, it stops it from running.

To get rid of this, you can disable the Antivirus software for some time and check whether the file is working or not. If it is working then whitelist the .dll file from the antivirus.

Method 4: Run the System File Scan via CMD

You must run the system file checker via command prompt to replace the winmm.dll file. The system files are important to run the PC smoothly. This might resolve the error, so follow the given steps:

  1. First, open Command Prompt from the desktop search bar, by typing “cmd”
  2. Open CMD with Administrator.
  3. In the CMD window, type SFC / scannow and hit enter.
  4. Once it is done, restart your computer and check the program whether it is running or not.

If this did not solve the error, then try to run DISM in CMD.

  1. First, open Command Prompt from the desktop search bar, by typing “cmd”
  2. Open CMD with Administrator.
  3. There type DISM.exe / Online / Cleanup-image / Restorehealth and hit Enter.
  4. Now, restart your computer and check whether the issue is solved or not.

Method 5: Reinstall the Program

Sometimes, the problem is in the program itself, so it is better to re-install the program that uses the winmm.dll file. Here’s how to re-install the affected Program.

  1. Press Windows + R keys together and open a RUN dialogue box
  2. There type “appwiz.cpl” and click ok. A Program & Features window will be open.
    Reinstall the program
  3. From the list of the apps, look for the program that shows the error.
  4. Do right-click on it and click on Uninstall option.
  5. It will as for confirmation, there click on Yes.
  6. Once you are done, restart your PC and download the latest version of the app that you have uninstalled.
  7. Install it and re-run the program to check whether the issue is solved.

These were some of the best fixes for the “Winmm.dll is missing on Windows 10” error issue. We hope these methods helped you to solve the error on your Windows 10 PC.


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