Fixes

FIX: winmm.dll is missing

To fix that DLL error, check out some of these potential resolutions for it.


How can I fix the winmm.dll is missing error?

1. Get a new winmm.dll file from DLL-Files.com

If the winmm.dll has been entirely deleted, you’ll need a new one. Try entering the keyword winmm.dll in Windows’ search utility.

If you need a new one, DLL-Files.com is among the most reputable sources for DLL files. Open the winmm.dll page on that website to download that DLL.

Then follow the guidelines at the top of DLL-Files.com’s FAQ page to extract and move the winmm.dll to the right folder.

If the problem is not fixed yet, then we recommend you to use the amazing Restoro repair tool, that will get rid of all the errors in your PC for good.

DLLs and registries are valuable data libraries that Windows uses in order to run properly.

Because of that, damaged or missing dlls or registry keys can be a leading cause for crashes, freezes, error messages, and they can even prevent you from launching software and Windows features altogether.

Unfortunately, registries and DLLs are clusters of data that even advanced users have a hard time tweaking properly without guidance, and even Microsoft advices against it.

More so, resetting your Windows OS is among the only truly effective solutions to fix these errors, but this solution has far too many drawbacks.

windows troubleshooters

In order to avoid all that, one can always rely on automated third-party solutions, and few are as good as Restoro. It automates pretty much every aspect of your PC repair process, from the scans to the actual fixing.

Follow this small guide to learn to you can restore your PC to peak performance using Restoro:

  1. Download and install Restoro
  2. Launch Restoro
    • Restoro will now compile data about your PC
      Restoro first scan
  3. Wait for it to find any system stability issues and possible malware infections
    • Once the scan is complete, Restoro will show you a summary of your PC’s current status
      Restoro repair
  4. Press Start Repair
    • Restoro will now start downloading and replacing and faulty registries, DLLs, and any other damaged files it may have found during the scan.
    • This is possible thanks to the online libraries that is uses for comparison, replacing damaged data with its perfectly functional equivalent
  5. Restart your PC for all the changes to take effect

Your PC should now work perfectly fine, and you will no longer have to worry about slow response times, BSoD errors, or anything of the sort.

Disclaimer: This program needs to be upgraded from the free version in order to perform some specific actions.


2. Scan system files

  1. Press the Windows key + S, and type cmd.
  2. Right-click Command Prompt, and select Run as administrator.
  3. First, run a Deployment Image scan by entering the following command, and press Enter: DISM.exe /Online /Cleanup-image /Restorehealth
  4. Then type sfc /scannow in the Command Prompt, and hit Enter.System File Checker command winmm.dll is missing
  5. Thereafter, wait for the System File Scan to complete its scanning. Restart Windows if the SFC scan does repair something.

3. Check the Recycle Bin

Restore the selected items option winmm.dll is missing
  1. Double-click the Recycle Bin icon on the Windows desktop.
  2. Select the winmm.dll file in the Recycle Bin if you find it there.
  3. Then click the Recycle Bin Tools tab.
  4. Press the Restore the selected items button.

4. Reinstall the software the error arises for

  1. To open Run, press the Windows key + R at the same time.
  2. Input appwiz.cpl and press Enter to open the Programs and Features Control Panel applet.
    Windows uninstaller winmm.dll is missing
  3. Select the software the winmm.dll error arises for.
  4. Click the Uninstall option.
  5. Click Yes on any dialog box windows that might open.
  6. Restart your desktop or laptop after uninstalling software.
  7. Then download the installer for the latest version of the uninstalled software.
  8. Open the program’s setup wizard to reinstall it.

If the winmm.dll error occurs for a more specific program, reinstalling that software might just fix the issue.

Installing and uninstalling programs can be a headache for you, and if you don’t do it correctly, you can get serious problems with your PC.

That’s why we recommend you the IObit Uninstaller software. This tool will take care of your PC for you, and you make sure you don’t make mistakes that lead to other mistakes.


5. Restore Windows to an earlier date

  1. Open Run, and enter rstrui.
  2. Click OK to open System Restore.
  3. Press the Next button to proceed.
  4. Click the Show more restore points option if you can.
    System Restore window winmm.dll is missing
  5. Select a restore point that will roll Windows back to a time that predates the winmm.dll error on your PC. (If you’re not sure, your best bet is to select the oldest restore point listed.)
  6. Software installed after a restore point gets deleted.
  7. To check what software will be deleted, click the Scan for affected programs button.
  8. Press the Next and Finish buttons.

Restoring Windows to a time that predates the winmm.dll error on your laptop or desktop is another probable fix.


6. Reset Windows 10

  1. To reset Windows 10, click the Type here to search button.
  2. Input reset in the search box, and then click Reset this PC.
  3. Next, click the Get Started button.
    Get started button winmm.dll is missing
  4. Select the Keep my files option, and then click the Next button.
    Keep my files button winmm.dll is missing
  5. Press the Reset button to continue.

Reinstalling Windows 10 by resetting the platform should restore a missing winmm.dll system file.

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