Error Code: 80090034

Question

We received the following error message when trying to open Outlook.

This machine was removed from Azure AD and was joined to a local domain.

We have reset the TPM chip as per https://docs.microsoft.com/en-us/windows/security/information-protection/tpm/initialize-and-configure-ownership-of-the-tpm

But we are still getting this error message.

Answer 1

Actually I've found the solution on another forum

"I figured out the solution, and it makes sense. This Microsoft article titled "DPAPI MasterKey backup failures when RWDC isn't available" indicates that when a domain user logs in for the first time, and can't contact a read/write domain controller, then DPAPI keys can't be backed up. I'm guessing Office365 uses DPAPI to store your credentials.

I am a remote user. When I deleted/recreated my user account, I was NOT connected to the corporate VPN, so Windows may not have been able to backup my DPAPI keys to the domain controllers.

Not sure where the TPM errors came into play, as (as far as I know) DPAPI doesn't use TPM... but it could have been a generic cryptographic error."

Solution was to set this registry key:

HKEY_LOCAL_MACHINE\Software\Microsoft\Cryptography\Protect\Providers\df9d8cd0-1501-11d1-8c7a-00c04fc297eb\ProtectionPolicy = 1 (DWORD)

Answer 2

Hi Dave B - Opt,

Thank you for the posting in our forum community.

Regarding your description about this issue thing, I’m very glad to hear about that your issue has been resolved and also thank you for sharing this such kind of solution with us in forum community. This solution can be also work for other users, who are searching solution for this kind of issue.

I'm truly appreciating your cooperation and reply in our forum community.

Regards,

Darpan

Answer 3

Hi Vaidya,

No problem - thanks for marking the answer!

Dave