在尝试运行“计算机管理^{(Computer Management)}”时，如果您收到一个对话框，说“此应用已被阻止以保护您^{(This app has been blocked for your protection)}，那么这篇文章将帮助您解决问题。据报道，从命令提示符运行 mmc.exe 或compmgmt.msc时会发生同样的问题。^{(compmgmt.msc)}

MMC.exe应用程序已被阻止以保护您

这是一个权限问题，如果普通用户尝试运行此类系统工具将导致说它已被阻止。除此之外，您可能还会遇到组策略^{(Group Policy)}问题。这可以修复，但您需要管理员权限才能实现它。这是因为当它们以提升的权限从命令提示符运行时，它可以工作。

1]更改组策略设置

如果您的帐户是管理员帐户，并且您仍然遇到问题，请更改组策略设置：

• 通过在运行提示中键入 gpedit.msc 然后按Enter键来打开组策略设置^{(Group Policy Settings)}。
• 导航^(Navigate)到User Configuration > Administrative Templates > Windows Components > Microsoft Management Console >受限/允许的管理单元
• 找到计算机管理^{(Locate Computer Management)}策略，然后双击打开它
• 请^(Please)启用它，退出组策略^{(Group Policy)}。

您现在应该能够毫无问题地启动该程序。政策详情如下：

• 启用时：^{(When Enabled:)}允许管理单元并可以添加到Microsoft 管理控制台^{(Microsoft Management Console)}或从命令行作为独立控制台运行。
• 禁用时：^{(When Disabled:)}管理单元被禁止，不能添加到Microsoft 管理控制台^{(Microsoft Management Console)}或从命令行作为独立控制台运行。将显示一条错误消息，说明该策略禁止使用此管理单元。

2]暂时禁用UAC

UAC是用户访问控制面板，如果需要马上运行命令，可以选择禁用一段时间。单击^(Click)开始按钮，然后键入UAC以^(Start)查找用户帐户控制设置^{(User Account Control Settings)}。

点击^(Click)打开，然后向下滑动底部的通知设置。由于没有检查，它将暂时允许启动应用程序。但是，请确保在完成后切换到默认值。如果您不能，请阅读我们有关如何修复它的相关指南。

您可能感兴趣的相关错误帖子：^{(Related error posts that may interest you:)}

• 为了保护您，该应用程序已被阻止。
• Microsoft 管理控制台 (MMC.exe) 已停止工作^{(Microsoft Management Console (MMC.exe) has stopped working)}。

我希望这篇文章很容易理解，并且您能够启动MMC.exe应用程序而不会被阻止。

MMC.exe app has been blocked for your protection in Windows 11/10

Whеn trying to rυn “Computer Management“, if you receive a dialog saying— This app has been blocked for your protection, then this post will help you solve the problem. The same problem has been reported to happen when running mmc.exe or compmgmt.msc from a command prompt.

MMC.exe app has been blocked for your protection

This is a permission issue where if a regular user tries to run such system tools will result in saying that it has been blocked. Along with this, you may have a Group Policy issue. This can be fixed, but you will need admin permission to achieve it. It’s because when they are run from the command prompt with elevated privileges, it works.

1] Change Group Policy Settings

If your account is an admin account, and you are still facing the issue, then change the group policy settings:

• Open Group Policy Settings by typing gpedit.msc in the run prompt followed by pressing the Enter key.
• Navigate to User Configuration > Administrative Templates > Windows Components > Microsoft Management Console > Restricted/Permitted snap-ins
• Locate Computer Management policy, and double click to open it
• Please enable it, exit Group Policy.

You should now be able to launch the program without any issue. The policy details as follows:

• When Enabled: The snap-in is permitted and can be added into the Microsoft Management Console or run from the command line as a standalone console.
• When Disabled: The snap-in is prohibited and cannot be added into the Microsoft Management Console or run from the command line as a standalone console. An error message is displayed stating that the policy is prohibiting the use of this snap-in.

2] Temporarily disable UAC

UAC is the user access control panel, and if you need to run the command right away, you can choose to disable it for some time. Click on the Start button, and then type UAC to find the User Account Control Settings.

Click to open, and then slide down the notification setting at the bottom. It will temporarily allow launching the application as there is no check. However, make sure to switch to default once you are done. In case you cannot, read our related guide on how to fix it.

Related error posts that may interest you:

• This app has been blocked for your protection.
• Microsoft Management Console (MMC.exe) has stopped working.

I hope the post was easy to follow, and you were able to launch the MMC.exe app without being blocked.

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