Error code 80090016 Trusted Platform Module has malfunctioned.

Hi Microsoft Community,

The TPM Error/Code 80090016 is clearly a crisis - we need to immediately collaborate with Microsoft and fix this punitive bug.

This bug manifested a long time ago - how is it possible that Microsoft cannot or does not address this massive issue?

Let's BEG for help if needed - this is so crippling EVERY hour of EVERY day.

And the answer cannot be "hacking the registry" or any effort that is above the acumen of Jane/John Q. Citizen.  Heaven forbid a "typo/mistake" is made and the entire PC is rendered inoperable.

PLEASE HELP!

I have this exact same issue. 

I have been on the phone lines with Microsoft for weeks now. They have no clue what they are doing. I've discussed this with a few representatives and they are clueless. 

I'm a small business and of all the service providers I work with Microsoft has by far been the worst experience. I would have never guessed that.  This has taken days of my life troubleshooting with little help from Microsoft.   As a small business owner, I'll carry experiences like this with me as I move along. 

Working with the employees I dont get the sense they care much. It feels like they are just trying to run out the shot clock to where someone needs to scrap their computer and move on.  

As of today, I've never been more disgusted by a company that I am with Microsoft. Truly as shame this exists and they have no solutions. Literally leaving people and businesses to drown.

Open Regedit.MSC with administrator account and navigate to :

HKEY_LOCAL_MACHINE\Software\Microsoft\Cryptography\Protect\Providers\df9d8cd0-1501-11d1-8c7a-00c04fc297eb

Afterwards create DWORD (32-bit) Value Key

Rename it with : ProtectionPolicy  and set value to 1

Afterwards try to open affected 365 App it should force it log in page and enroll again. 

At this stage Outlook,OneDriveshould work as expected.

I had hope that this would fix the TPM/prompt for login issue, but unfortunately it did not.  User was prompted for login less than 24 hours after the regedit. :(

I thought I would just post a follow up to my original post and to some of the responses on this thread.

I seem to have solved the problem.

As I mentioned, I have went to some pretty extreme measures to solve this issue.  I will list my details below in case it helps anyone else with this issue.

1. I have completely repartitioned my OS drive and reinstalled Windows 10 6 or 7 times trying different fixes after the OS install.  It may be more than 7.  I actually can't remember now how many times.  In each case it was after build 2004 was rolled out, and the standard windows installer that is downloaded from the web installs a fresh version of 2004.  My previous build was 1909.    I had been having some OS issues after an update sometime earlier this year on a previous update and decided to stop fighting the system and just start fresh.  It's important to note that I have many years under my belt as a system manager, software support and even software product management.
2. My installation of MS365 was completely up to date at the time I rebuild the system.  Microsoft 265 (Office 365) was working just fine prior to the OS re-install.
3. My Microsoft 365 is purchased through GoDaddy.
4. I started with all the password and TOM issues as soon as I reinstalled MS365 on the new OS.
5. I called GoDaddy several times and while they tried to help, they had no idea what the problem was.
6. I tried using Microsoft help both with chat and phone calls.  After many times waiting in excess of 4 hours I gave up trying to get help from them.
7. I have several other systems running both Widows 7 and Windows 10.  Some have a TPM module - some do not.  Even after upgrading my Windows 10 systems to 2004 they were not having the same problems I have been having with this system.
8. I kept getting the TPM malfunction error even thought my system initially didn't have a TPM module installed.  After working with my workstation manufacturer we decided to see if installing a TPM module would solve the issue.  So I purchased and installed a TPM module.  I still got the same errors and password problems.
9. I tried all the fixes listed on this thread as well as a number of other workarounds that can be found on the web.  Nothing fixed the problems.
10. I finally decided that I should just go back to build 1909 and see if MS365 works correctly on that build.  I do have an installer for 1909 on a USB so I rebuild the OS drive again with build 1909.  I have been running all my apps now for about a week with no issues at all.  I have not taken the plunge yet to upgrade to build 2004 using the windows update, but I will do that soon.  I suspect that my system will work just fine like my other systems that updated to build 2004.  If I was to guess - based on my 3 months of research on this issue and the fact that my other systems have no problems - I would guess that this system will work normally after the update.  I could be wrong.  If so I will post my results.
11. I can't answer the reason why others are having these problems, but in my case it seems that the core problem was a fresh install of build 2004.  It's too bad there is no way to get a MS engineer to do this all work and get a definitive answer.  I'm just happy now that I have a functioning system again.
12. Good luck to all.

Hello Eric,

Thank you for your response. Outlook is just a Mail client that let customer connecting to remote mail service more easily. If you remove your school and work account (make sure that all data are synced to server ), nothing special will happen, except for you can’t access mail service from local client and emails items will not there either.

Office 365 Business account is one type of Work accounts which is often assigned and managed by Office 365 tenant admin. If you keep receiving password prompt, please make sure there isn’t any change made by admin. Then try to clear Windows Credential Manager to clean-up all office and adal related credential caches. SaRA also have an option “Outlook keeps asking for my password” (although the scenario may different, but you can still try it, its general steps are clear credential caches, safe mode, Outlook profile checking and so on ).

For the original error message about TPM, TPM is a hardware component which provides hard-ware-based security functions for users and device secrets. I think you may check updates for Windows OS, make sure the version is up-to-date. If there’s any third-party anti-virus, please temporarily disable it. If convenient, try to create a new Windows Profile and check if issue persists.

If any update, welcome back and share with us.

Best Regards,

Anna