DLL（动态链接库）文件对您的计算机系统的工作至关重要。它们是可执行的，并保存多个应用程序使用的重要代码和数据。Windows 操作系统用户遇到的一个常见问题是系统无法加载软件或由于缺少DLL文件而突然结束程序或安装过程。
您可能很想从互联网上从第三方网站下载特定的DLL ，但这并不总是一个好主意。(DLL)本文介绍了修复Windows 10 中丢失的 DLL 文件的一般故障排除步骤。(missing DLL files)
winmm.dll是一个与Windows Multimedia API相关的模块，它包含低级音频和操纵杆功能。它位于System32 或 SysWOW64 文件夹(System32 or the SysWOW64 folder)中。当您尝试在计算机上运行程序时会弹出此错误。完整的错误消息说：
This application has failed to start because winmm.dll was not found. Re-installing the application may fix this problem
此错误消息的一个问题是它出现在许多应用程序中。因此，重新安装每个应用程序是不可行的。由于缺少 winmm.dll，相关程序将无法启动或无法以最佳方式运行。阅读本指南以了解如何解决此问题。
修复在(Fix)Windows 10中找不到 winmm.dll
如果您遇到 winmm.dll 丢失问题，以下是永久清除错误的最佳方法：
- 恢复已删除的 winmm.dll 文件。
- 运行系统文件扫描。
- 重新安装受影响的程序。
- 暂时禁用防病毒软件。
- 将系统还原到较早的日期
- (Download)从Microsoft(Microsoft)下载dll 文件
- 从另一台计算机复制文件。
1]恢复已删除的winmm.dll文件
您可能错误地从计算机上删除了 winmm.dll 文件，这种情况很少见。如果删除在一个月前没有发生，它应该仍然在回收站(Recycle Bin)中。要恢复文件，请打开回收站(Recycle Bin)并搜索“winmm.dll”。如果存在，请右键单击已删除的文件并点击Restore。这会将文件带回其原始目录。
2]运行系统文件检查器
这是替换丢失的系统DLL文件的最佳方法。
单击开始按钮(Start button)并输入 cmd。
右键单击 命令提示符(Command Prompt)，然后单击 以管理员身份运行(Run as administrator)。
输入(Enter)以下命令，然后按ENTER运行系统文件检查器：
sfc /scannow
重启你的电脑看看。
如果 t 没有帮助，请运行 DISM 以修复可能损坏的系统映像(run DISM to repair a potentially corrupted system image)。
在命令提示符(Command Prompt)窗口中，键入以下命令并按ENTER运行它：
DISM.exe /Online /Cleanup-image /Restorehealth
扫描完成后，重新启动计算机并查看。
3]重新安装受影响的程序
如果 winmm.dll 文件问题仅在您运行特定应用程序时出现，那么修复它比您想象的要容易。错误消息表明“重新安装应用程序可能会解决问题”。
首先，卸载应用程序并重新启动计算机。最后，下载并重新安装程序。如果您不确定如何执行此操作，请按照以下步骤操作。
- 按 Windows key + R组合打开“运行”(Run)对话框。
- 在运行中，输入 appwiz.cpl并单击 确定(OK)按钮。
- 从控制面板(Control Panel)小程序的列表中找到应用程序并右键单击它。
- 从上下文菜单中 选择 Uninstall并点击(Uninstall)Yes。
- 按照屏幕上的说明卸载应用程序(uninstall the application)。
- 重启你的电脑。
- 再次下载并安装应用程序。
4]暂时禁用防病毒
我始终建议用户始终在他们的机器上运行他们的安全软件。防病毒软件不允许恶意文件在您的 PC 上运行并造成任何损害。安全软件的问题在于它们仅仅是 软件(software)并且会出错。
DLL文件，包括 winmm.dll，可能已被视为恶意软件。发生这种情况时，文件将无法在您的系统中运行，因为它被隔离。如果您的防病毒软件是导致 winmm.dll 问题的原因，请暂时禁用防病毒软件，然后重试。如果这次它可以正常工作而没有错误消息，那么您所要做的就是将 DLL 目录从您的防病毒软件中列入白名单。
5]将您的系统还原(Restore)到较早的日期
系统还原会将您的计算机回滚到您创建还原点时的较早日期的状态。如果您在DLL(DLL)错误消息之前有一个还原点，则还原到该时间将解决问题。本指南将教您如何运行系统还原并解决问题。
6]从微软(Microsoft)下载(Download)dll文件
您可以使用Winbindex服务从 Microsoft 下载 Windows 10 exe、dll 等操作系统文件。(download Windows 10 exe, dll, etc, OS files from Microsoft)查看您的文件是否在那里可用。
7]从另一台计算机复制文件(Copy)
如果您有一个健康的系统，您的 Windows Media Player和其他程序都可以顺利运行而没有错误，您可以从计算机中获取 winmm.dll 文件。对于这种技术，首先将可移动存储驱动器（闪存驱动器、硬盘驱动器等）插入健康 PC。
接下来，导航到健康 PC 的C:WindowsSystem32（或SysWOW64）目录。在此文件夹中找到 winmm.dll 文件并将其复制 (copy )到存储驱动器。确保永远不会被 击中(cut)。将其粘贴到USB驱动器中，然后将USB驱动器连接到要修复的 PC。
现在，从外部驱动器复制或剪切 winmm.dll 文件并将其粘贴到C:WindowsSystem32.
最后一步是重新注册 dll 文件。
如果您已尝试本指南中的解决方案，但仍无法解决问题，则必须备份数据并使用 Windows 10 中的“全新启动”选项(use the Fresh Start option)。
Fix winmm.dll Not found or Missing error in Windows 10
DLL (dynamic link library) files are essential to the working of your computer system. They are executable and hold vital code and data used by multiple applications. A common issue that Windows OS users experience is when the system fails to load software or abruрtly ends a program or installation process due to a missing DLL file.
You may be tempted to go download the specific DLL off the internet from 3rd-party sites, but that’s not always a great idea. This article covers the general troubleshooting steps to fix missing DLL files in Windows 10.
The winmm.dll is a module associated with the Windows Multimedia API, which contains low-level audio and joystick functions. It is located in the System32 or the SysWOW64 folder. This error pops up when you attempt to run programs on your computer. The complete error message says:
This application has failed to start because winmm.dll was not found. Re-installing the application may fix this problem
A problem with this error message is that it shows up on many applications. So, re-installing every application is not feasible. With the winmm.dll missing, the associated programs will either not launch or not run optimally. Read this guide to the end to learn how to fix this issue.
Fix winmm.dll not found in Windows 10
If you experience the winmm.dll missing problem, here are the best ways to clear the error permanently:
- Restore the deleted winmm.dll file.
- Run a System File Scan.
- Reinstall the affected program.
- Disable antivirus temporarily.
- Restore your system to an earlier date
- Download the dll file from Microsoft
- Copy the file from another computer.
1] Restore the deleted winmm.dll file
There is a rare chance that you might have mistakenly deleted the winmm.dll file off your computer. If the deletion didn’t happen up to a month ago, it should still be in the Recycle Bin. To restore the file, open the Recycle Bin and search for “winmm.dll.” If it is there, right-click on the deleted file and hit Restore. This brings the file back to its original directory.
2] Run System File Checker
This is the best way to replace missing system DLL files.
Click on the Start button and enter cmd.
Right-click on Command Prompt and click on Run as administrator.
Enter the following command, and hit ENTER to run the System File Checker:
sfc /scannow
Restart your PC and see.
If t does not help, run DISM to repair a potentially corrupted system image.
In a Command Prompt window, type the following command and press ENTER to run it:
DISM.exe /Online /Cleanup-image /Restorehealth
On completion of the scan, restart your computer and see.
3] Reinstall the affected program
If the winmm.dll file problem only appears when you run a specific application, then fixing it is easier than you might’ve thought. The error message suggests that “reinstalling the application may fix the problem.”
First, uninstall the application and restart your machine. Finally, download and reinstall the program. If you’re not sure how to do this, follow the steps below.
- Press the Windows key + R combination to open the Run dialog box.
- In Run, enter appwiz.cpl and click the OK button.
- Find the application from the list in the Control Panel applet and right-click on it.
- Select Uninstall from the context menu and hit Yes.
- Follow the on-screen instructions to uninstall the application.
- Restart your computer.
- Download and install the application again.
4] Disable antivirus temporarily
I always recommend that users have their security software running on their machines at all times. Antiviruses disallow malicious files from running on your PC and causing any harm. The problem with security software is that they are merely software and can make mistakes.
DLL files, including the winmm.dll, could have been taken as malicious software. When this happens, the file won’t be able to run in your system as it gets quarantined. If your antivirus is the cause of the winmm.dll problem, disable the antivirus temporarily and try again. If it works this time without an error message, then all you have to do is whitelist the DLL directory from your antivirus.
5] Restore your system to an earlier date
A system restore rolls your machine back to its state at an earlier date when you created a restore point. If you have a restore point that precedes the DLL error message, then restoring to that time will resolve the problem. This guide will teach you how to run a system restore and get rid of the problem.
6] Download the dll file from Microsoft
You can download Windows 10 exe, dll, etc, OS files from Microsoft using the Winbindex services. See if your file is available there.
7] Copy the file from another computer
If you have a healthy system on which your Windows Media Player and other programs all run smoothly without errors, you can get the winmm.dll file from the computer. For this technique, start by inserting a removable storage drive (flash drive, hard drive, etc.) into the health PC.
Next, navigate to the C:\Windows\System32 (or SysWOW64) directory of the healthy PC. Find the winmm.dll file in this folder and copy it to the storage drive. Ensure never to hit cut. Paste it in the USB drive and connect the USB drive to the PC you want to repair.
Now, copy or cut the winmm.dll file from the external drive and paste it in C:\Windows\System32.
The final step is to re-register the dll file.
If you’ve tried the solutions in this guide and still have no luck getting rid of the issue, you have to back up your data and use the Fresh Start option in Windows 10.
