如何修复 Windows 中的 Teams 错误'访问此应用程序时出现问题”？

Microsoft Teams are widely applied for professional and educational purposes, serving as an essential means of communication and collaboration. Being one of the Microsoft 365 suite applications, it works perfectly with other Microsoft products, offering features that will help users communicate through chats, video calls, and file sharing.

However, no app is completely problem-free. A general complaint found with Teams is the “There was a problem reaching this app” error message when trying to use Teams or major features within it.

The “There was a problem reaching this app” error occurs when Teams fails to load appropriately or simply cannot connect to the required services. It could also happen when opening Teams, joining meetings, interacting with shared files, or accessing particular app integrations within Teams.

This could be due to several reasons, which include problems in network connectivity that will prevent Teams from communicating with Microsoft's servers. Also, it could relate to problems with cache files and corrupted data from the application which stop the app from starting correctly.

In other instances, potential conflicts with system settings, or interference with other apps – e.g., security applications – make Teams act contrary to expectations. Old operating versions of Teams or Windows can further lead to compatibility issues that cause this error.

To fix the “There was a problem reaching this app” error, various troubleshooting steps might be required for you: from basic checks like refreshing your network connection and updating Teams to more in-depth methods of clearing cache files and reconfiguring system settings.

Below are the manual instructions, starting from simpler solutions to more advanced ones. If you want to make the process of finding and fixing underlying Windows problems easier, then your best option is to run the FortectMac Washing Machine X9 repair tool which automatically fixes system errors and boosts application performance.

Fix 1. Check your internet connection

A stable and reliable internet connection is crucial for Microsoft Teams to function properly.

Windows 11

• Type Troubleshoot in Windows search and hit Enter.
• Select Other troubleshooters.
• Locate Network & Internet troubleshooter from the list and click Run.
• Wait till the process is finished and apply the recommended fixes.
• Restart your computer.
• Repeat with Windows Store apps troubleshooter.

Run Network troubleshooter in Windows 10

• Right-click on Start and pick Settings.
• Go to the Network & Internet section.
• On the right side, find the Advanced network settings section.
• Click Network troubleshooter and wait.
• The fixes will be automatically applied.

Fix 2. Clear Teams cache

Clearing the cache can help resolve issues caused by corrupted data stored by the app.

• Press Win E to open File Explorer.
• Ensure Hidden files are visible.
• In the address bar, type in %appdata%Microsoftteams and press Enter.
• Delete the contents of the following folders:
  %appdata%Microsoftteamsapplication cachecache
  %appdata%Microsoftteamsblob_storage
  %appdata%MicrosoftteamsCache
  %appdata%Microsoftteamsdatabases
  %appdata%MicrosoftteamsGPUcache
  %appdata%MicrosoftteamsIndexedDB
  %appdata%MicrosoftteamsLocal Storage %appdata%Microsoftteamstmp
• Make sure you empty the Recycle Bin (or use Shift Del combination to delete these files).
• Restart your system.

Fix 3. Update Microsoft Teams

Running an outdated version of Teams can cause compatibility issues that trigger errors.

• Open Microsoft Teams.
• Click on the Settings and more button at the top-right corner.
• Select Check for updates.
• Teams will automatically download and install any available updates.
• Restart Teams after the update is completed.

Fix 4. Update Windows

Ensuring that Windows is up to date can fix compatibility and performance issues.

• Type Updates in Windows search and hit Enter.
• If updates are available, click Install updates.
• Otherwise, click Check for updates.
• If optional updates are available, install them as well.
• When all the update processes are complete, restart your computer.

修复 5. 重新安装 Microsoft Teams

重新安装 Teams 可以帮助解决与文件损坏或配置错误相关的问题。

• 在 Windows 搜索中输入 控制面板，然后按 Enter。
• 转到程序>;卸载程序。
• 找到Microsoft Teams，右键单击，然后选择卸载。
• 按照提示删除应用程序。
• 完成后，按Win E 打开文件资源管理器。
• 在窗口顶部的查看选项卡中，启用隐藏文件。
• 转到C:Program FilesWindowsApps位置。
• 向下滚动找到 Microsoft Teams 文件夹并将其删除（或者，您可以重命名）。
• 现在在 Windows 搜索中输入 %AppData%，然后按 Enter。
• 删除此处的Teams文件夹。
• 最后，重新启动您的系统并重新安装应用程序。

修复6.解决损坏的文件

损坏的系统文件可能会影响应用程序性能。运行 SFC 和 DISM 扫描可以识别并修复这些问题。

• 在 Windows 搜索中输入 cmd。
• 右键单击命令提示符并选择以管理员身份运行。
• 用户帐户控制将出现窗口 - 出现提示时单击是。
• 然后，复制并粘贴以下命令，然后按 Enter：
  sfc /scannow
• 等待扫描完成。如果 Windows 发现系统文件完整性违规，它将尝试修复它们。之后，使用以下命令集，每次按 Enter：
  DISM /Online /Cleanup-Image /CheckHealth
  DISM /在线 /Cleanup-Image /ScanHealth
  DISM /Online /Cleanup-Image /RestoreHealth
  
• (注意：如果执行最后一个命令时出错，请将 /Source:C:RepairSourceWindows /LimitAccess 添加到然后重试）。
• 关闭命令提示符并重新启动您的系统。

修复7.运行干净启动

要识别可能导致 Teams 错误“访问此应用程序时出现问题”的软件，请在干净启动状态下运行 Windows。

• Type msconfig in Windows Search and press Enter.
• Click on the Services tab and check the Hide all Microsoft Services box.
• Click Disable all to disable non-Microsoft services, then click the Startup tab.
• Open the Task Manager, disable all startup items, and close the Task Manager.
• Go to the Boot tab and mark the Safe boot option.
• Click OK on the System Configuration window and restart your computer.
• Check if the error persists.
• Enable half of the disabled services in System Configuration.
• Restart your PC and check again.
• Repeat enabling services in smaller groups until the issue reappears.
• Once found, keep the problematic service disabled or consider updating it.

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