在访问内置Anti-Virus/SecurityWindows 安全^{(Windows Security)}性时，如果您收到错误消息：无法打开此应用程序，您的 IT 管理员已禁用 Windows 安全性。^{( Cannot Open this app, Your IT administrator has disabled Windows Security. Contact your IT Help desk)}联系您的 IT 帮助台；那么，这篇文章可以帮助您找到解决方案。这是我最近遇到的奇怪问题之一，它发生在我的两台计算机上，我能够通过更改一些设置来解决它。我在互联网^(Internet)上搜索它，发现根本没有提到这个特定的错误消息。我尝试了几种方法，但这最终帮助了我。

您的 IT 管理员已禁用Windows 安全^{(Windows Security)}

当您启动Windows 安全性^{(Windows Security)}时，该错误就会出现，它可能会暂时显示Windows 安全^{(Windows Security)}性应用程序，它会立即被这个小窗口取代，要求您联系您的 IT 部门。奇怪的是，它出现在我家里的 Windows 10 电脑上，而我是该帐户的唯一管理员。另一台电脑是我儿子的；他在计算机上有一个标准帐户。如果您遇到此问题，请登录您的管理员帐户并使用其中一种方法来解决此问题。

1. 组策略方法
2. 注册方法

由于 Windows 10 家庭版用户无权访问组策略^{( don’t have access to Group Policy)}，因此他们可以使用注册表^(Registry)方法。但是，请确保创建系统还原点。

1]组策略方法

通过在运行^(Run)提示符 ( Win + R )中键入gpedit.msc打开组策略编辑器。然后导航到：

Computer Configuration > Administrative Templates > Windows Components > Windows Security.

在这里，您有多个Windows Security策略，您需要更改这些策略以启用回访：

• 账户保护
• 应用程序和浏览器保护
• 设备性能和运行状况
• 设备安全
• 家庭选项
• 防火墙和网络保护
• 通知
• 系统托盘
• 病毒和威胁防护

打开每个文件夹，然后双击打开其中的策略。将其从Not Configured更改为Disabled。

我建议不要更改企业自定义^{(Enterprise Customization)}策略下的任何内容，除非它适用于您的计算机。

这是我启用一些设置时的屏幕截图。当您这样做时，它会自动出现在Windows 安全性^{(Windows Security)}中。

遵循此方法的第一个设置更改将启用对Windows 安全^{(Windows Security)}应用程序的访问。

将上图与下图进行比较。一旦我为设备^(Device)性能和健康区域策略选择了禁用，它就会立即出现在Windows 安全^{(Windows Security)}应用程序中。

 

启用所有这些后，我可以毫无问题地访问Windows 安全性的所有设置。^{(Windows Security)}我猜是某些东西改变了所有这些设置并阻止了我对Windows 安全^{(Windows Security)}应用程序的访问。它没有被禁用，因为它能够阻止来自互联网的任何病毒或不需要的程序，并且我能够在任务管理器^{(Task Manager)}中看到它。即使有管理员权限，我也无法访问它。

相关阅读^{(Related read)}：您的 IT 管理员对该应用程序的某些区域的访问权限有限^{(Your IT Administrator has limited access to some areas of this app)}。

2]注册方法

通过在运行^(Run)提示符 ( Win +R ) 中键入Regedit ，然后按 enter键^(Key)打开注册表编辑器^{(Registry Editor)}。然后导航到：

HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender Security Center

如下设置或创建相应的 DWORD：

HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender Security Center\Account protection

“UILockdown”=dword:00000000

要创建 DWORD，请进入帐户保护^{(Account protection)}密钥，然后右键单击右侧。创建一个名为UILockdown的^(UILockdown)DWORD，并将其值设置为 0。

HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender Security Center\App and Browser protection

“DisallowExploitProtectionOverride”=dword:00000000
“UILockdown”=dword:00000000

HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender Security Center\Device performance and health

“UILockdown”=dword:00000000

HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender Security Center\Device security

“DisableClearTpmButton”=dword:00000000
“DisableTpmFirmwareUpdateWarning”=dword:00000000
“HideSecureBoot”=dword:00000000
“HideTPMTroubleshooting”=dword:00000000
“UILockdown”=dword:00000000

HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender Security Center\Family options

“UILockdown”=dword:00000000

HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender Security Center\Firewall and network protection

UILockdown”=dword:00000000

HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender Security Center\Notifications

“DisableEnhancedNotifications”=dword:00000000
“DisableNotifications”=dword:00000000

HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender Security Center\Systray

“隐藏系统托盘”=dword:00000000

HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender Security Center\Virus and threat protection

“UILockdown”=dword:00000000
“ HideRansomwareRecovery ”=dword:00000000

如果计算机限制访问组策略或注册表编辑器，请在您的计算机上创建一个管理员帐户，并使用它来更改设置。

我希望这篇文章可以帮助您访问Windows 安全^{(Windows Security)}应用程序。

相关阅读：^{(Related Read:)} 如何将 Windows 安全设置重置为默认设置。

Your IT administrator has disabled Windows Security

When accеssing Windows Seсurity, the buіlt-in Anti-Virus/Securitу solution, іf you receive an error saying— Cannot Open this app, Your IT administrator has disabled Windows Security. Contact your IT Help desk; then, this post can help you find a solution for this. It’s one of the odd issues I faced recently, and it happened on both of my computers, and I was able to resolve it by changing some settings. I searched for it on the Internet and found that there was absolutely no mention of this particular error message at all. I tried several methods, but this is what finally helped me.

Your IT administrator has disabled Windows Security

The error appears as soon as you launch Windows Security, and it may show the Windows Security app for a moment, it will instantly be replaced by this small window asking you to contact your IT hed. The strange part was that it appeared on my Windows 10 computer at home, and I am the only admin on that account. The other computer belongs to my son; he has a standard account on the computer.  If you face this issue, log into your admin account and use one of these methods to fix this.

1. Group Policy Method
2. Registry Method

Since Windows 10 Home users don’t have access to Group Policy, they can use the Registry method. However, make sure to create a system restore point.

1] Group Policy Method

Open Group Policy Editor by typing gpedit.msc in the Run prompt (Win + R). Then navigate to:

Computer Configuration > Administrative Templates > Windows Components > Windows Security.

Here you have multiple policies for Windows Security, which you will need to change to enable back access:

• Account protection
• App and browser protection
• Device performance and health
• Device Security
• Family Options
• Firewall and network protection
• Notifications
• Systray
• Virus and Threat Protection

Open each of these folders, and double click to open the policies inside it. Change it from Not Configured to Disabled.

I will recommend not to change anything which is under Enterprise Customization policy unless it is applicable for your computer.

Here is a screenshot when I enabled a few settings. When you do so, it will automatically appear in Windows Security.

The first setting change following this method will enable access to the Windows Security app.

Compare the image above with the one below. As soon as I selected disabled for Device performance and health area policy, it appeared right away in the Windows Security app.

 

After enabling all of them, I was able to access all settings of Windows Security without a problem. I am guessing that something changed all these settings and blocked my access to Windows Security app. It was not is disabled because it was able to block any virus or unwanted program from the internet, and I was able to see it in the Task Manager. I wasn’t able to access it even with the admin permission.

Related read: Your IT Administrator has limited access to some areas of this app.

2] Registry Method

Open Registry Editor by typing Regedit in the Run prompt (Win +R) followed by pressing the enter Key. Then navigate to:

HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender Security Center

Set the following or create respective DWORD as follows:

HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender Security Center\Account protection

“UILockdown”=dword:00000000

To create a DWORD, go into Account protection key, and then right-click on the right side. Create a DWORD with name UILockdown, and set its value as 0.

HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender Security Center\App and Browser protection

“DisallowExploitProtectionOverride”=dword:00000000
“UILockdown”=dword:00000000

HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender Security Center\Device performance and health

“UILockdown”=dword:00000000

HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender Security Center\Device security

“DisableClearTpmButton”=dword:00000000
“DisableTpmFirmwareUpdateWarning”=dword:00000000
“HideSecureBoot”=dword:00000000
“HideTPMTroubleshooting”=dword:00000000
“UILockdown”=dword:00000000

HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender Security Center\Family options

“UILockdown”=dword:00000000

HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender Security Center\Firewall and network protection

UILockdown”=dword:00000000

HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender Security Center\Notifications

“DisableEnhancedNotifications”=dword:00000000
“DisableNotifications”=dword:00000000

HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender Security Center\Systray

“HideSystray”=dword:00000000

HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender Security Center\Virus and threat protection

“UILockdown”=dword:00000000
“HideRansomwareRecovery”=dword:00000000

If the computer restricts from accessing either the group policy or the registry editor, create an admin account on your computer, and use that to change the settings.

I hope the post helps you access the Windows Security app.

Related Read: How to reset Windows Security to default settings.

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