如果当您尝试在Windows 10上(Windows 10)打开 Windows 安全中心(open Windows Security Center)或任何其他设置(Settings)页面时，您会收到一条错误提示，指出页面不可用(Page not available)，那么这篇文章旨在帮助您。在这篇文章中，我们将确定潜在原因，并提供您可以尝试成功解决问题的最合适的解决方案。
为什么会出现这个错误？
发生此错误的主要原因是用户的帐户无权访问 Windows安全(Security)性的一部分。此外，由于您的 PC 可能具有限制您在应用设置之外自定义体验的组策略，因此可能会发生此错误。
当您遇到此问题时，您将收到带有以下完整错误消息的错误提示；
Page not available
Your IT administrator has limited access to some areas of this app, and the item you tried to access is not available. Contact IT helpdesk for more information.
该错误是指权限不足，可能是由于以下原因：
页面不可用，您的 IT 管理员的访问权限有限
如果您遇到此问题，您可以尝试以下我们推荐的解决方案（不分先后顺序），看看是否有助于解决问题。
- 工作或学校帐户
- 确保您以管理员身份登录
- 卸载第 3 方安全软件（如果适用）
- 检查组策略设置
- 手动启用Windows 安全中心(Windows Security Center)
- 重置 Windows 安全中心
- 请联系您的系统管理员。
让我们看一下关于列出的每个解决方案所涉及的过程的描述。
如果您的 Windows 10 PC 不是由 IT 管理员管理的公司网络的一部分，您应该尝试以下解决方案；否则，请按照提示联系您的 IT 管理员。
1]工作或学校帐户
如果您的计算机是公司帐户或学校帐户的一部分，您可能无法做很多事情。它的管理员故意禁用某些功能，因此您或其他任何人都无法更改它们。这确保了计算机的安全和政策。
但是，如果您觉得需要更改它，请与您的 IT 管理员联系并进行更改。
2]确保(Ensure)您以管理员身份登录
首先，确保您以管理员身份登录。如果您在系统上创建了多个帐户，请登录到管理帐户。如果您使用没有管理员权限的任何其他帐户登录到Windows 10计算机，您将在打开Windows 安全中心时收到(Windows Security Center)页面不可用(Page not available)错误。
3 ] 卸载第 3(] Uninstall 3rd)方安全软件（如果适用）
如果您的 Windows 10 PC 上安装了任何第三方安全软件，您可能会遇到此问题。在这种情况下，要解决此问题，您必须使用专用的AV 删除工具(AV removal tool)从 PC 中删除所有第三方防病毒程序，以删除与您的防病毒程序关联的所有文件。即使您之前通过“程序(Programs)和功能(Features)”小程序卸载了任何第三方安全软件，但仍然出现此错误，很有可能是 AV 软件中的残留文件仍在干扰Windows 安全中心(Windows Security Center)的正常运行.
4]检查组策略设置
类似于 IT 管理员可以阻止某些事情，PC 管理员也可以这样做。但是，与 IT 管理员不同，在这里进行更改很容易。例如，如果您需要测试网站是否存在恶意尝试，则需要禁用或启用Microsoft Defender Exploit Guard。
作为您的 PC 管理员，转到以下路径并更改策略
Microsoft Defender Antivirus > Microsoft Defender Exploit Guard > Network Protection，然后更改策略。
该政策明确规定——
Enable or disable Microsoft Defender Exploit Guard network protection to prevent employees from using any application to access dangerous domain.
完成后，PC 管理员可以随时将其更改回默认设置。
同样，注册表(Registry)可以更改设置，但您必须确切知道应该更改什么。在注册表编辑器(Registry Editor)中，您需要转到以下路径并进行相应更改。
HKLM\Software\Policies\Microsoft\Windows Defender\Policy Manager
相关(Related)：如何将所有本地组策略设置重置为默认值。
5 ]手动(] Manually)启用Windows安全中心(Windows Security Center)
如果由于某种原因Windows 安全中心(Windows Security Center)已被禁用，您将需要手动启用该应用程序(manually enable the app)。
相关(Related)：某些设置由Windows 10 中的组织消息管理。
6]重置Windows安全中心
此解决方案要求您简单地重置 Windows 安全应用程序(reset the Windows Security app)，看看是否有帮助。
7]联系(Contact)您的系统管理员
如果没有任何帮助，您可能需要联系系统管理员并查看是否已应用任何组策略设置(if any Group Policy setting has been applied)。
这些解决方案中的任何一个都应该适合您！
相关帖子(Related post)：Windows 安全中的安全概览页面为空白(Security at a glance page in Windows Security is blank)。
Page not available, IT administrator has limited access to some areas
If when you try to open Windows Security Center or any other Settings page on Windows 10, you receive an error prompt stating Page not available, then this post is intended to help you. In this post, we will identify the potential causes, as well as provide the most suitable solutions you can try to successfully resolve the issue.
Why this error occurs?
The primary reason why this error occurs is due to the fact that the user’s account is not authorized to access part of theWindows Security. Also, this error can occur due to the fact that your PC might have a group policy that restricts you from customizing the experience any further than the applied settings.
When you encounter this issue, you’ll receive an error prompt with the following full error message;
Page not available
Your IT administrator has limited access to some areas of this app, and the item you tried to access is not available. Contact IT helpdesk for more information.
The error refers to insufficient permissions which can be due to the following:
- Third-party antivirus software.
- Group Policies in effect.
Page not available, Your IT administrator has limited access
If you’re faced with this issue, you can try our recommended solutions below in no particular order and see if that helps to resolve the issue.
- Work or School Account
- Ensure you’re logged in as Administrator
- Uninstall 3rd party security software (if applicable)
- Check Group Policy setting
- Manually enable Windows Security Center
- Reset Windows Security Center
- Contact your system administrator.
Let’s take a look at the description of the process involved concerning each of the listed solutions.
You should try the solutions below, if your Windows 10 PC is not part of a corporate network managed by an IT administrator; otherwise, contact your IT admin as indicated on the prompt.
1] Work or School Account
If your computer is part of a corporate account or a school account, you may not be able to do much. It admins disable some features on purpose, so they cant be changed by you or anything else. This assures computers safety and policy.
However, if you feel you need to change it, get in touch with your IT admin, and get it changed.
2] Ensure you’re logged in as Administrator
First and foremost, make sure you are signed in as an Administrator. If you have multiple accounts created on your system, log in to the administrative account. If you’re logged on to the Windows 10 computer with any other account without admin privileges, you’ll get the Page not available error when opening Windows Security Center.
3] Uninstall 3rd party security software (if applicable)
If you have any third-party security software installed on your Windows 10 PC, you may encounter this issue. In this case, to fix this issue, you’ll have to remove all third-party antivirus programs from your PC using the dedicated AV removal tool to remove all files associated with your antivirus program. Even if you have earlier, via the Programs and Features applet, uninstalled any third-party security software but still getting this error, chances are, that there are residual files from the AV software which is still interfering with the proper functioning of Windows Security Center.
4] Check Group Policy setting
Similar to how an IT admin can block certain things, a PC admin can do the same. However, unlike IT admin, getting it changed here can be easy. For example, if you need to test a website for a malicious attempt, you need to disable or enable Microsoft Defender Exploit Guard.
As your PC admin, to go to the following path and change the policy
Microsoft Defender Antivirus > Microsoft Defender Exploit Guard > Network Protection, and change the policy.
The policy clearly says—
Enable or disable Microsoft Defender Exploit Guard network protection to prevent employees from using any application to access dangerous domain.
Once you are done, the PC admin can always change it back to the default setting.
Similarly, the settings can be changed by the Registry, but you will have to know exactly what should be changed. In the Registry Editor, you need to go to the following path and change accordingly.
HKLM\Software\Policies\Microsoft\Windows Defender\Policy Manager
Related: How to reset all Local Group Policy settings to default.
5] Manually enable Windows Security Center
If for some reason that Windows Security Center has been disabled, you’ll need to manually enable the app.
Related: Some settings are managed by your organization message in Windows 10.
6] Reset Windows Security Center
This solution requires you to simply reset the Windows Security app and see if that helps.
7] Contact your system administrator
If nothing helps, you may need to contact your system administrator and see if any Group Policy setting has been applied.
Any of these solutions should work for you!
Related post: Security at a glance page in Windows Security is blank.
