We’ve encountered the following error on a system:
Your computer’s Trust Platform Module has malfunctioned.
Error Code: 80090016
This issue typically indicates a problem with the system’s Trusted Platform Module (TPM), which can affect features relying on secure key storage — such as Windows Office 365, BitLocker, or certain authentication services.
Recommended steps to troubleshoot:
- Restart your computer
- Check for and install any pending Windows updates
- Clear the TPM via the Windows Security
If this does not resolve the issue, you may need to disconnect your account.

Afterward, restart your computer and try signing back into Office 365 or the affected application.
Enjoy!