Teams crashes on startup

New Contributor

After reinstalling my PC with Windows 10 20H2 I downloaded and installed Teams version

Now, each time I try to start Teams it crashes with Application Error ID 1000:


Name der fehlerhaften Anwendung: Teams.exe, Version:, Zeitstempel: 0x5e9f0152
Name des fehlerhaften Moduls: ntdll.dll, Version: 10.0.19041.804, Zeitstempel: 0x4544b4a1
Ausnahmecode: 0xc0000005
Fehleroffset: 0x0000000000039167
ID des fehlerhaften Prozesses: 0x17ac
Startzeit der fehlerhaften Anwendung: 0x01d7090e2d89aa70
Pfad der fehlerhaften Anwendung: C:\Users\Marcel\AppData\Local\Microsoft\Teams\current\Teams.exe
Pfad des fehlerhaften Moduls: C:\Windows\SYSTEM32\ntdll.dll
Berichtskennung: 3fa1cb81-520f-4d84-9977-b33d2bd11475
Vollständiger Name des fehlerhaften Pakets:
Anwendungs-ID, die relativ zum fehlerhaften Paket ist:


Does anybody know the reason or how to solve that issue?

4 Replies

Hi @Marcel60  I wasn't able to find anything specific to Teams for this error but I found this video related to Windows 10: How to Fix Event 1000 Application Error on Windows 10 [Tutorial] - Bing video


Let us know if it helps.

Hi @ThereseSolimeno, thanks for the link. I tried both commands, but unfortunately Teams still crashes as before :( Are there any other ideas?

Hi @Marcel60   Unless anyone else in the community has a suggestion, I think you should go to for personalized tech support.  


I had the same problem on my work-computer. 

The problem was the fact that my folder "Application data" was located to our server. 

I made a copy of the appdata map from the server to my local computer and redirected the appdata folder to my local computer instead of our server.

That fixed the problem. (and for other troubled programs too)
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