Resolve TPM Issues after replacing motherboard (Error 80090016)
Cause: TPM is an authentication method that uses matching keys stored on the motherboard and in your computer's registry. When you replace your motherboard, the key on the new motherboard doesn't match the key on your computer, causing the error.
If you are receiving error code 80090016 after replacing your motherboard, try the following steps to resolve:
If your computer is manufactured by Dell, Dell provides this article:
Clear your TPM (Sets ownership back to factory default for re-enrollment)
1. Press the Windows key + R to open Run.
2. Type tpm.msc and press Enter.
3. In the TPM Management Console, Click on Action > Clear TPM.
4. Next time you use an Office Application, you should be prompted to sign in.
5. Choose "allow my organization to manage my device" to restore your connections to your work account as before.
Delete Personal Computer Certificates that are missing keys. (Forces new certificates and keys to be generated)
Note: You may need to reinstall or reactivate your Office Applications after deleting certificates.
1. Press the Windows key + R to open Run.
2. Type certlm.msc and press Enter.
3. In Personal > Certificates, look at the list of certificates.
- Certificates with keys look like this:
, these certificates are in working order.
- Certificates missing their key (
) are not valid. Look for any certificates issued by MS-Organization that are missing a key and delete them.
4. Try signing in to Outlook app - If you receive error messages, continue, and if prompted, sign out and sign back in to generate the new keys. Note: Some versions of Outlook may require you to uninstall and reinstall.
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