当您想要在电脑上运行病毒扫描而Windows 安全应用程序无法启动(Windows Security app won’t launch)时，这会令人沮丧。各种因素都可能导致应用程序出现这种行为。但是，您可以采取一些故障排除步骤来解决该问题。
Windows 安全(Windows Security)应用程序无法启动的几个原因包括应用程序的配置有错误、Windows版本已过时、Windows系统文件已损坏等等。
1. 关闭电脑(Your)上的其他
防病毒程序(Antivirus Programs)
(Windows Security doesn’t launch)由于您在电脑上使用了其他防病毒程序，Windows Security 无法启动。该工具可能会干扰 Windows 安全功能，导致应用程序无法启动。
在这种情况下，您可以关闭其他防病毒程序并尝试打开Windows 安全(Windows Security)应用程序。尝试强制关闭其他程序以确保其完全关闭。
- 右键单击(Right-click)“开始(Start)”菜单图标并选择“任务管理器”(Task Manager)。
- 右键单击列表中的防病毒程序，然后选择结束(End)任务。
- 启动 Windows 安全。
如果Windows 安全(Windows Security)在禁用第三方防病毒工具后启动，您可以从电脑中删除该工具，以确保您不会再次遇到相同的问题。以下是如何做到这一点。
- 按Windows + I
打开Windows 设置。(Windows Settings)
- 选择(Select Apps)左侧边栏中的应用程序和右侧窗格中的
应用程序和功能。(Apps)
- 在列表中找到您的防病毒程序，选择该程序旁边的三个点，然后选择“卸载”(Uninstall)。
- (Select Uninstall)在提示中
选择卸载以确认您的操作。
- (Restart)打开“开始”(Start)菜单，选择“电源”(Power)图标，然后选择“重新启动” ，重新(Restart)启动电脑。
2.重新启动Windows安全中心服务(Windows Security Center Service)
Windows 在后台运行各种服务(Windows runs various services)来支持电脑的多种功能。与Windows 安全(Windows Security)相关的服务可能无法正常工作，导致应用程序无法启动。
此时，您可以重启相关后台服务来解决您的问题。
- 按Windows + R打开“运行”(Run)对话框。
- 在框中键入以下内容并按 Enter：
services.msc
- (Find)在服务列表中找到“安全中心”(Security Center)并右键单击，选择“重启”(Restart)。
- 退出(Quit)“服务”(Services)窗口，然后打开Windows 安全(Windows Security)应用程序。
3.修复Windows安全应用程序
与许多其他应用程序一样，Windows Security可能会因配置错误和其他技术项目而出现问题。发生这种情况时，您可以使用电脑的内置修复工具尝试修复该应用程序。
- 按Windows + I
打开电脑的“设置”应用。(Settings)
- 选择(Select Apps)左侧边栏中的应用程序和右侧窗格中的
应用程序和功能。(Apps)
- 在应用程序列表中找到“Windows 安全”(Find Windows Security)，选择该应用程序旁边的三个点，然后选择“高级(Advanced)选项”。
- (Select Repair)在以下屏幕上选择修复。
- 修复应用程序后，启动该应用程序。
4.重置Windows安全应用程序
如果修复Windows 安全性(Windows Security)未能解决应用程序的启动问题(fix the app’s launch problem)，您可以进一步重置应用程序。这样做会清除应用程序的所有当前设置，从而解决您的应用程序问题。
- 打开“开始”(Start)菜单，找到PowerShell，然后选择以管理员身份运行(Run)。
- 在用户帐户控制(User Account Control)提示中选择是(Yes)。
- 在PowerShell(PowerShell)窗口中键入以下命令并按 Enter：
Get-AppxPackage Microsoft.SecHealthUI -AllUsers | 重置AppxPackage
- 命令运行完毕后
关闭PowerShell窗口。(PowerShell)
- 启动 Windows 安全应用程序。
5. 更新您的 Windows 版本
您的Windows操作系统版本可能已过时，导致您的系统和安装的应用程序出现故障。因此，您应该始终使用最新版本的系统软件。
您可以通过将电脑上的
Windows 更新到最新版本(updating Windows to the most recent version)来解决您的问题。
- 按Windows + I 打开“设置”(Settings)。
- 在左侧边栏中
选择“Windows 更新” 。(Windows Update)
- (Choose Check)在右侧窗格中选择检查更新。
- 允许 Windows(Allow Windows)查找可用更新。
- 下载并安装所有显示的更新。
- 重新启动您的电脑。
6.修复损坏的Windows文件
Windows系统文件可能会损坏，导致系统功能、库存应用程序甚至第三方应用程序出现故障。这些文件因多种原因而损坏，包括病毒和恶意应用程序。
幸运的是，Windows包含一个内置工具可以帮助您修复计算机上损坏的系统文件(fix corrupt system files on your computer)。您可以从命令提示符运行名为(Command Prompt)SFC（系统文件检查器(System File Checker)）的工具来查找并修复 PC 上所有有问题和丢失的核心文件。
- 打开“开始”(Start)菜单，找到“命令提示符”(Command Prompt)，然后选择“以管理员
身份运行” 。(Run)
- 在用户帐户控制(User Account Control)提示中选择是(Yes)。
- (Enter)在CMD窗口中(CMD)输入以下命令并按Enter。此命令下载修复您的电脑所需的文件。
DISM.exe /Online /Cleanup-image /Restorehealth
- 运行以下命令开始扫描并修复损坏的 Windows 文件：
sfc /scannow
- 当SFC(SFC)修复了有问题的文件
后，重新启动 PC 。
7.重置您的Windows电脑
如果执行上述所有方法后Windows Security仍无法启动，则系统的核心配置可能已损坏。处理这种情况的一种方法是重置您的电脑。
重置电脑会(Resetting your PC)删除所有自定义配置和应用程序，从而修复计算机上的几乎所有问题。请注意，重置电脑时您将丢失应用程序，因此请确保您对此表示同意。
- 按Windows + I
打开“设置”。
- 在左侧边栏中选择“系统”(System) ，在右侧窗格中
选择“恢复” 。(Recovery)
- 选择(Choose Reset PC)重置此电脑旁边的重置电脑。
- 选择“保留(Keep)我的文件”以确保Windows不会删除您的文件。
- 选择“本地(Choose Local)重新安装”以在本地重置您的电脑。
- 按照屏幕上的重置说明进行操作，将电脑恢复至出厂设置。
- 重置电脑后
启动Windows 安全。(Windows Security)
使用各种方法
解决 Windows Security 的启动问题(Launch Issues Using Various)
如果您无法打开“Windows 安全”(Windows Security)，则意味着您无法运行病毒扫描(run virus scans)、启用或禁用防病毒保护或防火墙，或者在应用程序中执行其他与安全相关的任务。此问题使您的 PC 容易受到各种威胁。
幸运的是，解决应用程序的启动问题并不是太棘手。如上所述，您可以在电脑上进行一些更改来解决您的问题。
Windows Security Not Opening? 7 Ways to Fix It
It’s frustratіng when you want to run a virus scan on your PC, and the Windows Security app won’t launch. Various items can cause the app to behave this way. However, you can take a few troubleshooting steps to resolve the problem.
A few reasons your Windows Security app won’t launch are that the app’s configuration is faulty, your Windows version is outdated, Windows system files are corrupt, and more.
1. Close Other Antivirus Programs on Your PC
Windows Security doesn’t launch because you’re using another antivirus program on your PC. That tool may be interfering with Windows Security’s functionalities, causing the app not to launch.
In this case, you can close your other antivirus program and try to open the Windows Security app. Try force-closing your other program to ensure it’s fully closed.
- Right-click your Start menu icon and select Task Manager.
- Right-click your antivirus program on the list and choose End task.
- Launch Windows Security.
If Windows Security launches after disabling your third-party antivirus tool, you can remove that tool from your PC to ensure you don’t face the same issue again. Here’s how to do that.
- Open Windows Settings by pressing Windows + I.
- Select Apps in the left sidebar and Apps & features on the right pane.
- Find your antivirus program on the list, select the three dots next to the program, and choose Uninstall.
- Select Uninstall in the prompt to confirm your action.
- Restart your PC by opening the Start menu, selecting the Power icon, and choosing Restart.
2. Restart the Windows Security Center Service
Windows runs various services in the background to support your PC’s multiple functions. It’s possible a service related to Windows Security is not working correctly, preventing the app from launching.
In this case, you can restart the relevant background service to fix your issue.
- Open the Run dialog box by pressing Windows + R.
- Type the following in the box and press Enter:
services.msc
- Find and right-click Security Center on the services list and choose Restart.
- Quit the Services window, then open your Windows Security app.
3. Repair the Windows Security App
Like many other apps, Windows Security can become problematic due to faulty configuration and other technical items. When this happens, you can use your PC’s built-in repair tool to try to repair the app.
- Open your PC’s Settings app by pressing Windows + I.
- Select Apps in the left sidebar and Apps & features on the right pane.
- Find Windows Security on the app list, select the three dots next to the app, and choose Advanced options.
- Select Repair on the following screen.
- When you’ve repaired the app, launch the app.
4. Reset the Windows Security App
If repairing Windows Security didn’t fix the app’s launch problem, you can go a step further and reset the application. Doing so clears all the current settings of the app, resolving your app problem.
- Open the Start menu, find PowerShell, and select Run as administrator.
- Select Yes in the User Account Control prompt.
- Type the following command on the PowerShell window and press Enter:
Get-AppxPackage Microsoft.SecHealthUI -AllUsers | Reset-AppxPackage
- Close the PowerShell window when the command has finished running.
- Launch the Windows Security app.
5. Update Your Windows Version
Your Windows operating system version may be outdated, causing your system and installed apps to malfunction. So, you should always use the latest version of your system software.
You can resolve your issue by updating Windows to the most recent version on your PC.
- Press Windows + I to open Settings.
- Select Windows Update in the left sidebar.
- Choose Check for updates on the right pane.
- Allow Windows to find available updates.
- Download and install all the displayed updates.
- Reboot your PC.
6. Fix Corrupt Windows Files
Windows system files can corrupt, causing your system functions, stock apps, and even third-party apps to malfunction. These files become corrupt for many reasons, including viruses and malicious apps.
Fortunately, Windows includes a built-in tool to help you fix corrupt system files on your computer. You can run a tool called SFC (System File Checker) from Command Prompt to find and fix all the problematic and missing core files on your PC.
- Open the Start menu, locate Command Prompt, and select Run as administrator.
- Select Yes in the User Account Control prompt.
- Enter the following command on the CMD window and press Enter. This command downloads the files required to fix your PC.
DISM.exe /Online /Cleanup-image /Restorehealth
- Run the following command to begin scanning for and fixing corrupt Windows files:
sfc /scannow
- Restart your PC when SFC has fixed the faulty files.
7. Reset Your Windows PC
If Windows Security doesn’t launch even after following all the above methods, your system’s core configuration might be corrupt. One way to deal with this situation is to reset your PC.
Resetting your PC deletes all your custom configurations and apps, fixing nearly all the issues on your computer. Note that you’ll lose your apps while resetting the PC, so ensure you’re okay with that.
- Open Settings by pressing Windows + I.
- Select System in the left sidebar and Recovery on the right pane.
- Choose Reset PC next to Reset this PC.
- Select Keep my files to ensure Windows doesn’t delete your files.
- Choose Local reinstall to reset your PC locally.
- Follow the on-screen reset instructions and finish bringing your PC back to the factory settings.
- Launch Windows Security when you’ve reset your PC.
Resolve Windows Security’s Launch Issues Using Various Methods
If you can’t open Windows Security, that means you can’t run virus scans, enable or disable your antivirus protection or firewall, or perform other security-related tasks in the app. This problem makes your PC vulnerable to various threats.
Luckily, fixing the app’s launch issues isn’t too tricky. As outlined above, you can make a few changes on your PC to resolve your issue.
