Tuesday, November 16, 2021

Outlook 365 Trusted Platform Module error code 80090016

Error: Outlook 365 Trusted Platform Module error code 80090016

Solution #1: Delete this folder:


This needs to be done with the affected user logged off, i.e log on as a different admin user or do it from a network share.  the folder will get recreated when the user logs on next.

Start Outlook, you will need to enter password again, you will get asked to workplace join again "say yes to allow my organization to manage this device"  it may still throw the 'Something went wrong, TPM error' but ignore this and Outlook should continue to load again. The TPM error will only occur once.

Solution #2: Delete the Contents of Ngc Folder.

  1. Find the path below: C:\Windows\ServiceProfiles\LocalService\AppData\Local\Microsoft\
  2. Take over ownership of Ngc folder. Right-click on the folder and click Properties > Security > Advanced.
  3. Type in the username of the account that you are currently using.
  4. Afterward, click Check Names and then hit OK.
  5. Make sure that the ‘Replace owner on subcontainers and objects’ box is checked.
  6. Click Apply and then hit OK.
  7. Open up the Ngc folder and delete the all the contents of the folder.
  8. Test again.