有用科技小编2026/10/11
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阅读12分钟电脑检测软件哪个好，得先看你到底要查什么。先按报错倒推要查的组件，再用 sfc /scannow 和 DISM 跑一遍系统文件与组件存储，接着核对运行库和 DirectX 版本，最后用事件查看器确认这次缺的是什么、有没有修好。
缺 DLL 的弹窗多数是运行库没装全、系统文件被改坏或者旧组件残留造成的，硬件本身大多没坏，不必急着重装系统或送修。以下方法在 Windows 10/11 实测可用。
适用系统：Windows 10/11；最后更新：2026-10-11。
电脑没明显故障，却总弹缺 DLL 的报错，该查什么
开机或者点开某个游戏、办公软件时，屏幕跳出「无法启动此程序，因为计算机中丢失 msvcp140.dll」，或者「应用程序无法正常启动(0xc000007b)」，关掉再点还是老样子。在 Windows 10 1803、Windows 11 22H2 上都见过同样的弹窗，系统其他地方用起来又都正常。这种半好半坏的状态最容易被忽略，也最容易被当成中毒或者硬件坏了。
报错里的内容其实已经把线索给得差不多了：文件名叫 msvcp140.dll，说明问题出在 Visual C++ 运行库那一块。错误码 0xc000007b 多出现在 32 位和 64 位组件混用的时候，真正报错的程序只占一两个，说明系统主体还在。查的方向不同，该用的工具就不同，这也是判断电脑检测软件哪个好的第一步。
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按上面几项把现象对一遍，能确定是单个文件缺失还是整块组件异常，后面就不用来回瞎试。
方法1 从报错倒推要检测的组件
把弹窗里的文件名和错误码原样记下来，这一步基本决定了后面查运行库还是查 DirectX，能省掉一半的试错时间。
操作步骤
- 记下弹窗里的文件名，比如 msvcp140.dll、vcruntime140.dll、d3dx9_43.dll，复制粘贴到记事本里存着
- 记下同一个弹窗里的错误码，比如 0xc000007b、0xc0000135
- 文件名里带 msvcp、vcruntime、msvcr 的，先按 Visual C++ 运行库缺失处理
- 文件名里带 d3dx9、d3dcompiler、xinput 的，先怀疑 DirectX 组件没装全
- 按分类决定下一步：去核对运行库版本，还是去核对 DirectX 版本
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分好类再动手，比一出弹窗就乱装运行库合集稳得多。
方法2 用系统自带命令做完整性体检
系统自带的 sfc 和 DISM 能直接检查系统文件和组件存储，不用装任何东西，跑完就知道是不是系统文件被改坏了。
操作步骤
- 按 Win+R，输入 cmd，右键选「以管理员身份运行」
- 输入 sfc /scannow 回车，等进度走到 100%，看结果是「Windows 资源保护未找到任何完整性冲突」还是「Windows 资源保护找到了损坏文件并成功修复了它们」
- 接着输入 DISM /Online /Cleanup-Image /RestoreHealth 回车，这一步修的是组件存储，通常要跑几分钟
- 顺序是先 sfc 后 DISM；如果 sfc 提示无法修复其中某些文件，跑完 DISM 再回头执行一次 sfc /scannow
- 两条都跑完重启电脑，再打开原来报错的那个程序，看弹窗还在不在；详细记录在 C:\Windows\Logs\CBS\CBS.log
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这两条命令只动系统自己的文件，第三方软件的安装目录不受影响，跑之前不用额外备份。
用「软领DLL系统修复」更省事
全面诊断会一次扫过系统组件和 DLL 的完整性，把缺了哪一项直接列成结果，你按结果补对应组件就行，不用自己一条条命令去试。
dll修复针对弹窗点名的那个文件，直接定位并补齐对应的 DLL，省得你自己在 C:\Windows\System32 和 C:\Windows\SysWOW64 里一个个翻。
软领是知名国产软件品牌，20 年技术沉淀、服务千万用户；软领官网 wyouhua.com 直接下载，安装无捆绑勾选项。软件里可以点客服按钮联系真人客服，复杂情况有工程师远程协助。
方法3 核对运行库与DirectX组件清单
命令跑完只能说明系统文件是好的，缺的组件还得自己对着清单核对一遍，三处看完基本能锁定缺的是哪一块。
操作步骤
- 控制面板→程序和功能，看 Microsoft Visual C++ 2015-2022 的 x86 和 x64 各版本是否齐全，缺哪套补哪套
- 同一个列表里核对 .NET Framework 的版本是否存在，报 0xc0000135 的程序常和它有关
- 按 Win+R，输入 dxdiag 回车，在「系统」页看 DirectX 版本，在「显示」页看显卡型号和驱动版本
- 打开文件资源管理器，进 C:\Windows\System32，确认 d3dx9_43.dll、msvcp140.dll、vcruntime140.dll 这些关键文件在不在
- 32 位程序还会去 C:\Windows\SysWOW64 取文件，两处都看一眼，缺哪个补哪个
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同一台机器上 x86 和 x64 两套运行库要各自装齐，只装一套是很多程序装完继续报错的原因。
方法4 查事件日志留证据再定位
事件查看器会把每次报错都记下来，按时间点对一遍，就能看出该补运行库还是回头再修系统文件。
操作步骤
- 按 Win+R，输入 eventvwr.msc 回车，打开事件查看器
- 左侧展开 Windows 日志→应用程序，按时间对照报错发生的那一刻
- 重点看来源是 Application Error、SideBySide 的条目，双击可以看详细信息
- 看条目里的模块名：指向某个 DLL，就回到方法3补运行库；指向系统文件，就回方法2重跑 sfc 和 DISM
- 把时间、来源、模块名三项记下来，作为下次判断有没有修好的对照依据
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日志是判断有没有真修好的依据，比凭感觉点一遍程序靠谱。
常见问题
电脑提示 msvcp140.dll 丢失，用什么工具检测比较好？
先看弹窗里除了这个文件名还有没有错误码，两样一起记下来。可以先用系统自带的 sfc /scannow 和 DISM 确认系统文件没问题，再核对 Microsoft Visual C++ 2015-2022 的运行库是否装齐。想省事也可以用软领DLL系统修复的全面诊断扫一遍，看它列出来的到底是哪一项缺失。
软件启动报 0xc000007b 到底是缺什么组件？
这个错误码多出现在 32 位和 64 位组件对不上的时候，常见原因是缺了 x86 版的 Visual C++ 运行库，或者 DirectX 的旧组件没装全。核对时 x86 和 x64 两套都要看，只装一套不管用。
sfc /scannow 和 DISM 的修复顺序能反过来吗？
建议先 sfc 再 DISM。sfc 会先用组件存储里的副本去修系统文件，如果组件存储本身也坏了，它会提示无法修复。这时再跑 DISM /Online /Cleanup-Image /RestoreHealth 把组件存储修好，然后回头执行一次 sfc /scannow。
dxdiag 里 DirectX 版本显示 12，还要再装 DirectX 9 吗？
要的。DirectX 12 里不含老游戏需要的那几个运行库文件，像 d3dx9、d3dcompiler，它们由 DirectX 最终用户运行时单独提供。报错文件名带 d3dx9 的，就把对应的旧组件补上。
事件查看器里 SideBySide 报错说明什么问题？
来源是 SideBySide 的条目，通常和程序清单、Visual C++ 运行库或 .NET 组件版本对不上有关。双击条目看它指向的模块名，指向 DLL 就补运行库，指向系统文件就回到方法2重跑命令。
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