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阅读13分钟出现「dll没有被指定在windows上运行」报错，多数是系统缺少对应运行库、DLL文件损坏或版本不匹配造成的，硬件本身大多没有问题，不必急着重装系统或送修。以下4个方法在 Windows 10/11 实测可用，按从易到难逐个排查。
4种修复方式：重新安装关联程序、补装VC++运行库、手动复制DLL并注册、更新Windows系统补丁。
适用系统：Windows 10/11；最后更新：2026-08-04。
msvcp140.dll没有被指定在windows上运行是什么情况
启动程序时弹出提示框，报错原文通常是「msvcp140.dll 没有被指定在 Windows 上运行」或「找不到 msvcp140.dll，因此这个应用程序未能启动」。msvcp140.dll 属于 Visual C++ 2015–2022 运行库（存放于 C:\Windows\System32\msvcp140.dll），它缺失或与当前系统版本不匹配，任何依赖它的程序（如 Visual Studio 项目、Adobe 工具、Steam 游戏）都会拒绝启动。winmm.dll、comctl32.dll、libeay32.dll 等同类 DLL 也会触发完全相同的报错格式。
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先判断报错中具体点名哪个 DLL，再对应选择下面的修复路径，能省去大量反复试错的时间。
方法一 重新安装报错关联的程序
若只有某一款软件触发此报错，多半是该软件安装包不完整或安装时文件写入失败，重新安装可以补回缺失的 DLL。这是最快、风险最低的首选方式。
操作步骤
- 按
Win + R输入appwiz.cpl，回车打开「程序和功能」。 - 找到报错程序，右键选「卸载」；若有「修复」选项，优先点「修复」而非完全卸载。
- 卸载完成后，从软件官网下载最新完整安装包重新安装。
- 安装完毕后启动程序，验证报错是否消失。
重装过程中安装程序会自动将 msvcp140.dll 等运行库写入 C:\Windows\System32，无需手动干预。
方法二 补装 Visual C++ 运行库
msvcp140.dll 来自微软 Visual C++ 2015–2022 运行库；运行库缺失或版本过旧是导致「dll没有被指定在windows上运行」最常见的根源，直接安装对应运行库包可一次性修复。
操作步骤
- 前往微软官网搜索「Visual C++ Redistributable Downloads」，下载「Visual C++ 2015-2022 Redistributable」。
- 64位系统下载
vc_redist.x64.exe；若程序为32位，还需额外下载vc_redist.x86.exe。 - 双击安装包，按提示完成安装（若已安装旧版，选「修复」覆盖即可）。
- 重启电脑，再次启动报错程序测试。
安装运行库后，msvcp140.dll 会自动写入系统目录，winmm.dll 等其他常见 DLL 也可通过安装 DirectX 运行库或 Windows 常用运行库合集同样补齐。
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方法三 手动复制 DLL 并用 regsvr32 重新注册
若运行库已安装但报错依旧，可能是 DLL 文件本身损坏或注册信息丢失，手动替换并重新注册可强制修复。操作前建议先备份原文件。
操作步骤
- 从另一台正常运行的同版本 Windows 电脑复制对应 DLL（如
msvcp140.dll）。 - 64位系统将 DLL 粘贴到
C:\Windows\System32；若该 DLL 为32位版本，则放到C:\Windows\SysWOW64。 - 按
Win + R输入cmd，再按Ctrl + Shift + Enter以管理员权限运行。 - 输入
regsvr32 msvcp140.dll回车，看到「DllRegisterServer 已成功」提示后关闭窗口。 - 重启电脑后测试报错程序。
注意：从不可信来源下载 DLL 存在安全风险；版本不兼容可能引入新问题，若手动替换后出现异常，恢复备份文件并优先使用方法二的运行库安装方式。
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方法四 更新 Windows 系统补丁
系统更新有时会补全被损坏或被意外删除的系统 DLL，以及修复与运行库相关的底层组件。若前三种方法未能解决，检查并安装待更新的系统补丁是稳妥的兜底步骤。
操作步骤
- 点击「开始」→「设置」→「更新和安全」→「Windows 更新」。
- 点击「检查更新」，等待扫描完成。
- 安装所有可用更新（含可选更新中的驱动与运行时组件）。
- 更新完毕后重启电脑，再次启动报错程序验证。
- 若问题仍存在，以管理员身份运行命令提示符，依次执行
sfc /scannow扫描修复系统文件，再执行DISM /Online /Cleanup-Image /RestoreHealth修复系统映像，完成后重启。
系统更新与 SFC/DISM 组合能处理大多数因系统文件损坏导致的 DLL 报错，执行后重启一次即可看到效果。
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上述手动步骤需要逐一判断 DLL 类型、核对系统位数、找对安装包——软领DLL系统修复的「运行库修复」和「dll修复」功能可以自动扫描系统中缺失或损坏的 DLL 文件，批量补全运行库缺口，省去手动逐个下载安装的麻烦。「全面诊断」可一次性检测多类系统异常，定位 dll无法运行的实际根因，再针对性修复。
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常见问题
msvcp140.dll没有在指定的windows上运行怎么解决？
首选安装「Visual C++ 2015–2022 Redistributable」运行库（x64/x86 均装），安装后重启即可覆盖缺失或损坏的 msvcp140.dll。若仍报错，再尝试手动复制 DLL 并执行 regsvr32 msvcp140.dll 重新注册。
libeay32.dll没有被指定在windows怎么办？
libeay32.dll 是 OpenSSL 加密库的组成文件，通常随使用 OpenSSL 的程序一同安装。重新安装报错程序是最直接的修复方式；如果程序已卸载，可从官网下载完整安装包重装。
comctl32.dll没有被指定在windows上运行如何处理？
comctl32.dll 是 Windows 系统自带组件。以管理员身份运行 sfc /scannow 可扫描并自动修复；或执行 regsvr32 comctl32.dll 重新注册，完成后重启电脑测试。
dll报错出现后重装系统是唯一出路吗？
不是。绝大多数 dll无法运行报错通过补装运行库或修复系统文件就能解决，不需要重装系统。只有在 SFC/DISM 修复失败且所有运行库方法均无效的极端情况下，才考虑重装系统作为兜底方案，且重装前应先备份重要数据。
64位系统应该把DLL放到哪个目录？
64位 DLL 放 C:\Windows\System32；32位 DLL 在64位系统上放 C:\Windows\SysWOW64。目录放错是手动修复不生效最常见的原因之一。
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MSVCR100.dll 丢失怎么办，5种方法修复 VC++ 2010 运行库
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dll没有被指定在windows上运行msvcp140.dll修复dll无法运行软领DLL系统修复 
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