Error code 80090016 Trusted Platform Module has malfunctioned.

Hi all

I'd just like to add my experience of this issue after reading through all the replies.

For me, every time the PC in question would restart, or after X amount of time it would prompt for the users 365 password. I went through all the usual solutions, deleted the accounts, re-created profiles, reboots, cleared the TPM chip after getting the same error in the OP screen shot.

What did work however, and this may only be temporary, when signing into your apps select sign into the app only and not the org. This then doesn't add your account under the work/school account section. My 365 apps are now signed in, I've done a few restarts, left the device for a few hours and no popups as of yet! 

Fingers crossed,

Microsoft - Pull your finger out!

Hi all, I've had the same issues since 4th January when my PC did an automatic update to Windows version 20H2...constant requests for password sign ins, trusted platform errors, etc. Inspired by some earlier posts this how I fixed it and I know very little about how PCs work.

I did this by removing my work email from Outlook profiles via the Control Panel and also from ‘Accounts/Access work or school’ under Windows Settings. I then temporarily disabled the Trusted Platform Module via Windows Settings.

I then set up ‘sign in with Hello Face’ since this is one of the prompts I was getting from the Work account.

When I signed back in to my PC there was no need for a password at all since I had face recognition and no requests for email sign in. I then added back my work email to my one (single) profile (Outlook) under which I already had my personal Outlook account and my business account using an Imap sign up.

For Aneta who asked in an earlier post, you won't lose any emails from your work account since everything is on the cloud. The emails all come back once you add the email under the cleaned up profile as above,

All seems to be working again since Saturday evening so fingers crossed.

Good luck and I feel your frustration with MS.

I almost agree. It seems harsh but this is a pretty important piece to have to mess around with as we have had to do. As a Side note, I just bought an M1 Macbook.

I have tried above steps - no success.

I have the impression that we, as community, try all possible ways to solve the problem on Microsoft's behalf.

Am I wrong? Is this the right way? Luckily for me I am also a mac user and can easily switch. This however does not solve the problem for me as a Win user.

I tried quite a few things including:

1. Deleting the ngc folder.
   1. Did not work immediately.
2. Clearing the TPM credentials on two places.
   1. Did not work immediately.
3. Going to Settings -> Access Work or School -> Clicking on my work account -> Click "Disconnect".
   1. This seemed to work.
   2. The account disappeared and reappeared but was not removed.