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Latest Teams Desktop Version getting auto restart, very strange issue. teams not working completely for desktop version.

Vijay Kumar 0 Reputation points
2026-05-06T04:15:39.2866667+00:00

Hi Team,

Problem Statement: I’ve encountered a serious issue that is still unresolved. I received two Teams meeting invites from the same email thread and accidentally accepted both without cancelling one, as I had to quickly join another meeting.

Since then, whenever I try to join a meeting using the desktop app, it attempts to open Microsoft Teams, but a pop-up briefly appears and disappears repeatedly, preventing me from joining.

Troubleshooting Steps Already Attempted:

  • Restarted Teams multiple times
  • Cleared cache and temporary files (including using Wreset.exe)
  • Delete Everything from teams folder under Appdata
  • Uninstalled and reinstalled the Teams desktop application

Despite these efforts, the issue persists. I am currently forced to attend meetings via the browser or mobile app, which indicates the problem is specific to the desktop application.

Request: Kindly advise on how to resolve this issue and restore normal functionality to the Teams desktop app

Microsoft Teams | Microsoft Teams for business | Meetings and calls | Audio and video

Answer recommended by moderator

  1. Vijay Kumar 0 Reputation points
    2026-05-06T05:52:12.83+00:00

    The issue is now resolved. I left Microsoft Teams open for about an hour while I was away. When I returned, I noticed a prompt indicating that Teams had encountered a problem and asked to close or proceed. I clicked “Close,” after which it requested permission to access the camera. Once I allowed access, the application became stable and started working normally.

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  1. Q&A Assist
    2026-05-06T04:15:54.8833333+00:00
    AI generated content. This question contains an answer created with AI from Q&A Assist. Learn more

    The behavior matches a Teams desktop client launch failure. Because cache clearing and a basic reinstall did not help, deeper client and profile checks are needed.

    Follow these steps in order:

    1. Verify OS and Teams version support
      Ensure the device is running a supported Windows version for the new Teams client. If the OS is an unsupported version, update it to a supported Windows build and then try launching Teams again.
    2. Check for network or endpoint issues
      If the desktop client cannot reach Teams services correctly, it can fail during meeting join and appear to open/close repeatedly.
      • Confirm that firewall or proxy settings are not blocking access to required Teams endpoints.
      • Make sure all Teams-related network requests are allowed.
        After confirming network access, try launching the Teams desktop app and joining a meeting again.
    3. Run the Teams launch diagnostics (recommended)
      Use the documented launch troubleshooting to detect profile and folder issues:
      • Option 1: Run the TeamsLaunchCheck.ps1 PowerShell script if available in the environment to automatically perform all checks.
      • Option 2: Perform the checks manually (requires admin rights and care):
        1. Check whether the Cookies and InternetCache shell folders point to a reparse point using the provided PowerShell commands. If either is a reparse point, update the corresponding registry entries under HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders to a non–reparse-point path (for example, the default INetCookies and INetCache locations) and then retry Teams.
        2. Check whether TEMP and TMP environment variables point to a reparse point using the documented PowerShell command. If they do, change them to a normal local path and restart Windows before testing Teams again.
        3. Confirm that the user account has Read permission to all of the required %USERPROFILE%\AppData\Local\Microsoft\Windows subfolders listed in the launch-issues article (INetCache, INetCookies, History, IECompatCache, etc.). Missing permissions on any of these can cause the Teams window to open and close immediately.
    4. Fully remove residual Teams data and reinstall
      A standard uninstall may leave corrupted data behind. Use a more thorough cleanup:
      • Uninstall the Teams desktop app.
      • Under the entire %AppData% and %LocalAppData% trees, search for and delete remaining folders and files that contain "Teams" in their name (not just the main Teams folder).
      • Reboot the device.
      • Install the latest Teams desktop client again from the Microsoft Store or the official installer.
      • Sign in and test joining a meeting.
    5. If the client still opens and closes immediately
      • As an admin, use the Teams client health dashboard (when available) to check the Launch failure insight for the affected user and see whether it reports:
        • "Unable to navigate to Teams endpoint" (fix by adjusting firewall/proxy as above),
        • "Timed out waiting for Teams endpoint" (ensure all Teams traffic is allowed),
        • "Teams application contains a script error" (have the user sign out of Teams and sign back in), or
        • "Unsupported OS version" (update the OS).
      • If all documented checks and fixes have been applied and the issue persists, open a support case with Microsoft Support and provide the launch failure details and any Event Viewer logs from the crashes.

    These steps address the known causes of Teams desktop launch failures and repeated open/close behavior, which aligns with the symptoms described.

    References:

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