Teams--Error Message C0090030

Question

I use Teams all of the team for chats and meetings with my co-workers. I am no longer to access Teams as I receive error message C0090030. Please advise.

Answer 1

Hi @Cynthia Reese-McKersie ,

Does this issue persist all the time?

Does anyone else have the same issue in your organization?

Have you tried to login Teams web client on your device?

From the error message, the problem most likely is related to Trusted Platform Module (TPM) issue, In this scenario, you can try to clear TPM of users computer and login again to see the result.
To Clear TPM:

1: Before you clear TPM, you may back up the data protected by keys, such as a virtual smart card, Login PIN.For your information:
https://learn.microsoft.com/en-us/windows/security/information-protection/tpm/initialize-and-configure-ownership-of-the-tpm#precautions-to-take-before-clearing-the-tpm

2: After that you can go to Windows Security Setting to clear TPM and see the result after restart device.
For your information:
https://learn.microsoft.com/en-us/windows/security/information-protection/tpm/initialize-and-configure-ownership-of-the-tpm#clear-all-the-keys-from-the-tpm

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