How to Fix Microsoft Office 365 – Error Code 80090016 on Windows

When you download, install, activate, log in, or update your Micrsoft 365 apps, you may encounter some issues such as Microsoft Office error code 147-0, Microsoft something went wrong 2400, Microsoft something went wrong 1001, etc.

Here, we will talk about another error code – Microsoft Office 365 – error code 80090016. The following is a related forum.

Today when I activated my New Microsoft Excel Account, an error message popped out as follows:-

Something went wrong
Your computer's Trusted Platform Module has malfunctioned. If this error persists, contact your system administrator with the error code 80090016.Microsoft

Actually, this issue not only happens in Excel, you can also receive the error code when using Outlook. We list the possible reasons for the Microsoft Office error code 80090016.

1. Replacement system board.
2. Trusted Platform Module (TPM) malfunctions.
3. Using a PIN to sign in.
4. An issue with your user account.
5. A corrupted Outlook installation.

After analyzing the reasons, let’s see the solutions for the Microsoft Office 365 – error code 80090016.

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Fix 1: Disconnect All Your Accounts

To fix the “Microsoft Office 365 – error code 80090016” issue, you can disconnect all your accounts. Here is how to do that:

1. Press the Windows + I keys together to open Settings.

2. Go to Account > Access work or school.

3. Disconnect all your accounts from here. Then restart your PC, sign in to Excel or another program that has the error code again, and check if the error code has gone.

Fix 2: Set up Multifactor Authentication for Your Account

You can also set up multifactor authentication for your account to fix the error code. Follow the guide below:

1. Sign in to Microsoft 365 with your work or school account.

2. After you choose Sign in, you’ll be prompted for more information. Choose Next.

3. The default authentication method is to use the free Microsoft Authenticator app. If you have it installed on your mobile device, select Next and follow the prompts to add this account. If you don’t have it installed, there is a link provided to download it.

Fix 3: Clear TPM

Some people report that they have fixed the Microsoft Office 365 – error code 80090016 successfully via clearing TPM. You can also have a try. Here’s how to do it:

1. Press the Windows + I keys together to open Settings.

2. Navigate to Update & Security > Windows Security.

3. Under the Protection areas section, click Device security.

4. Then click Security processor details. Next, click Security processor troubleshooting.

5. Click the Clear TPM button.

Fix 4: Delete the Contents of the Ngc Folder

Deleting the contents of the Ngc folder can also be helpful.

1. Close Outlook. Open File Explorer.

2. Copy and paste the path below into the Address Bar:

C:\Windows\ServiceProfiles\LocalService\AppData\Local\Microsoft\NGC

3. Delete all contents of the displayed folder.

Fix 5: Rename the AAD.BrokerPlugin Folder

If Microsoft Office 365 – error code 80090016occurs due to a TPM issue after replacing your system board, rename the AAD.BrokerPlugin Folder to fix it.

1. Sign in to your PC with another administrator account.

2. Open the Run dialogue box by pressing the Windows+ R at the same time.

3. Type the command below and press Enter:

C:\Users\%username%\AppData\Local\Packages

4. Scroll to find the Microsoft.AAD.BrokerPlugin_cw5n1h2txyewy folder. Copy and paste it to the Home Screen. This is for backup.

5. Go back to the Packages folder and rename the Microsoft.AAD.BrokerPlugin_cw5n1h2txyewy folder to Microsoft.AAD.BrokerPlugin_cw5n1h2txyewy.old.

6. Go back to the affected user account and relaunch Outlook.

Fix 6: Reinstall the Affected App

You can also try to reinstall the affected app to remove the “Outlook error code 80090016” error code:

1. Type Control Panel in the Search box and press Enter.

2. Go to Programs > Uninstall a program.

3. Find the app you encounter the error, then right-click it to choose Uninstall.

4. Follow the on-screen instructions to uninstall it.

5. Reboot your system and reinstall the app.

Final Words

This article introduces how to fix Microsoft Office 365 – error code 80090016. If you are bothered by this error, go to follow these methods to get rid of the trouble. Besides, you can back up your important data regularly.