Do you get a “您需要一個新的應用程序才能打開它 windowsdefender link” error while trying to launch the Windows Security app? If so, your app or PC might have corrupt files or incorrectly specified settings. We’ll show you how to fix them to get Windows Security working.
More often than not, the above issue occurs due to a problem in the Windows Security app. Other reasons for the error include Windows bugs, interference from a third-party antivirus tool, and more.
重新啟動您的 Windows 電腦
An easy way to fix most issues in Windows is to 重啟你的電腦. Doing so fixes many minor glitches with the system, allowing you to have a bug-free experience with your apps.
Your Windows Security app error may have resulted from a system bug. Simply reboot your PC to resolve the issue.
重新啟動Windows 10
- 打開 開始 菜單。
- 點擊 強大能力 圖標。
- 選擇 重新啟動 在菜單中。
重新啟動Windows 11
- 訪問 開始 菜單。
- 點擊 強大能力 icon at the bottom of the menu.
- 選擇 重新啟動 在菜單中。
Reset the Windows Security App
Like all other apps, Windows Security can experience issues sometimes. One way to fix these app-related issues is to reset your faulty app. Doing so deletes your data and configured options in the app, letting you use the app from scratch.
在Windows 10上
- 打開 開始 菜單,搜索 Windows安全, right-click the app, and choose 應用程序設置.
- 選擇 重設 在下一頁上。
- 選擇 重設 在提示中。
- 重新啟動您的 Windows PC。
在Windows 11上
- 發佈會 設定 按下 Windows + I.
- 選擇 應用程式 在左側邊欄。
- 選擇 應用程式和功能 在右側。
- 定位 Windows安全,選擇應用程式旁邊的三個點,然後選擇 高級選項.
- 點擊 重設 按鈕。
- 選擇 重設 在提示中。
- 重新啟動您的電腦。
Turn Off Your Third-Party Antivirus Program
You can get the “You’ll need a new app to open this windowsdefender link” error when your third-party antivirus tool interferes with Windows Security. This often happens as these tools and Windows Security perform the same tasks on your PC.
You can get around that by turning off your antivirus protection. Most antivirus programs have the option to enable and disable protection on their main screen.
If disabling your third-party antivirus protection fixes the issue, you should 卸載程序 to avoid seeing the same error in Windows Security. Here’s how to uninstall an app on your Windows PC.
在Windows 10上
- 發佈會 設定 按下 Windows + I.
- 選擇 應用程式 在設置中。
- Choose your antivirus on the list and select 卸載.
- 選擇 卸載 在提示中。
- 重新啟動您的電腦。
在Windows 11上
- 用鼠標右鍵單擊 開始 選單圖標並選擇 設定. 或者,按 Windows + I.
- 選擇 應用程式 在左邊和 應用程式和功能 在右側。
- Find your antivirus on the list, select the three dots next to the program, and choose 卸載.
- 選擇 卸載 在提示中。
- 重啟你的電腦。
Update Your Windows 10 or 11 Version
An outdated Windows 10 or 11 operating system version can cause many problems on your PC. Your Windows Security error may have likely resulted from a bug on your system.
你可以透過以下方式解決這個問題 updating your Windows PC to the latest version available. Doing so patches various bugs on your system and possibly adds new features.
在Windows 10上
- 媒體推薦 Windows + I 打開 設定.
- 選擇 更新與安全 在設置中。
- 選擇 Windows更新 在左邊。
- 選擇 檢查更新 在右側。
- 安裝可用的更新。
- 重新啟動您的電腦。
在Windows 11上
- 用鼠標右鍵單擊 開始 選單圖標並選擇 設定.
- 選擇 Windows更新 在左邊。
- 選擇 檢查更新 在右側。
- Download and install the available Windows 11 updates.
- 重啟你的電腦。
Reinstall and Re-register the Windows Security App
If your “You’ll need a new app to open this windowsdefender link” error persists, you can try reinstalling and re-registering your Windows Security app to see if that fixes the issue. Doing this removes and reinstalls the app, helping fix nearly all the app-related problems.
在Windows 10上
- 已提交 開始, 搜索 命令提示符, 然後選擇工具。
- Type the following in CMD 並按下 Enter:
PowerShell -ExecutionPolicy Unrestricted -Command “& {$manifest = (Get-AppxPackage *Microsoft.Windows.SecHealthUI*).InstallLocation + ‘AppxManifest.xml’ ; Add-AppxPackage -DisableDevelopmentMode -Register $manifest}”
- After executing the command, close the 命令提示符 窗口。
在Windows 11上
The following procedure will reinstall and re-register all stock Windows apps.
- 獲取 開始, 搜索 PowerShell的,然後選擇 以管理員身份運行.
- 選擇 是 ,在 用戶帳戶控制 及時。
- 在您的中輸入以下內容 PowerShell的 窗口並按下 Enter:
取得 AppxPackage -allusers | foreach {Add-AppxPackage -register「$($_.InstallLocation)appxmanifest.xml」-DisableDevelopmentMode}
- When you’ve finished running the command, close PowerShell的.
Fix Corrupt Files on Your Windows 10 or 11 PC
Corrupt files often cause various problems on a Windows PC. Luckily, there’s an easy way to get around this problem.
Windows offers a built-in tool called SFC (System File Checker) that allows you to find and fix all faulty files on your system. The tool runs on its own for the most part, so you don’t have to locate any corrupt files manually.
The command runs the same way on both Windows 10 and 11.
- 打開 開始 菜單,搜索 命令提示符,然後選擇 以管理員身份運行.
- 選擇 是 ,在 用戶帳戶控制 及時。
- Type the following in your CMD 窗口並按下 Enter: DISM.exe /Online /Cleanup-image /Restorehealth
- After executing the above command, run the following command: sfc /scannow
- Allow SFC to find and fix your corrupt files.
- Restart your PC when you’ve fixed the files.
Reset Windows PC to the Factory Settings
If the above steps have failed to resolve the “You’ll need a new app to open this windowsdefender link” error, your last resort is to reset your PC to the factory settings. Doing so deletes all your custom-configured options and lets you set up your PC from scratch.
Note that you can keep your files while resetting your PC. However, 備份您的重要文件 以防萬一。
在Windows 10上
- 發佈會 設定 按下 Windows + I.
- 選擇 更新與安全 在設置中。
- 選擇 恢復 在左邊。
- 選擇 開始 下面 重置此PC 在右側。
- 選擇 保存我的文件 並按照屏幕上的說明。
在Windows 11上
- 已提交 Windows設置 按下 Windows + I.
- 選擇 系統 在左側邊欄。
- 選擇 恢復 在右窗格中。
- 選擇 復位PC 旁邊 重置此PC.
- 選擇 保存我的文件 and follow the instructions on your screen.
Get Around Windows Security’s App Errors on Your Windows 10 or 11 PC
Windows Security is an essential part of your computer. If you find the app malfunctioning or not launching, the above methods should help you deal with the issue.
Once you’ve fixed the problem with your app, you’ll be able to protect your PC again from various threats and even run manual scans 如果你想。