Internal error has occurred within Trusted Platform Module Outlook error

In this post, we will help you fix the Internal error has occurred within the Trusted Platform Module Outlook error on a Windows 11/10 computer. As it indicates, the problem is associated with the Outlook application which may arise when the TPM has malfunctioned. Users face this problem for the Outlook desktop client or Outlook with Office 365. After entering the login credentials for their Outlook user account, an error pops up which prevents Outlook from authentication and users are not able to access it. So, for those who face this problem, there are some helpful solutions covered below.

Internal error has occurred within Trusted Platform Module Outlook error

To fix this Internal error has occurred within Trusted Platform Module Outlook error in Windows 11/10, you should use the following solutions:

1. Clear your Office credentials
2. Reset TPM to default settings
3. Uninstall the TPM Driver
4. Update TPM Firmware
5. Use a new User Account or Profile.

Let’s have a look at these solutions.

1] Clear your Office credentials

This is an easy fix to use. Before you try to authenticate the Outlook application again and again on your Windows 11/10 computer, you should first remove all the stored Office credentials from your system and then do that as the problem could be with the saved credentials data. For this, you need to use Windows Credential Manager. Here are the steps:

1. Open the Credential Manager application. Type credential manager in the Search box of your Windows 11/10 PC, and hit Enter to open it
2. Select the Windows Credentials option available on the top right part
3. Under the General Credentials section, expand each saved generic credential one by one, and then use the Remove option. You must delete all those generic credentials
4. Restart your Windows 11/10 system.

Now sign in to the Outlook user account. The authentication would be successful and your problem will be solved. If not, use the next option.

2] Reset TPM to default settings

As the problem started for Outlook when the internal error occurred within the Trusted Platform Module, so you should clear all the information (created keys associated with TPM, sign-in PIN, and other data) stored in TPM. For this, you need to reset TPM to its default settings. To do so, you need to clear TPM and it can be done using Windows Security. Before that, you should back up your important data which is encrypted and protected by TPM. After that, follow these steps:

1. Open the Windows Security app using the Search box
2. Click on Device Security in the Home section
3. Click on the Security processor details option
4. Select the Security processor troubleshooting option available below the Status section
5. Press the Clear TPM button.

After that, your Windows 11/10 system will restart for completing the action.

3] Uninstall the TPM driver

If the TPM driver is corrupted which is further causing this authentication problem with Outlook for the Trusted Platform Module device installed on your Windows 11/10 system, then you should uninstall the TPM driver from your Windows 11/10 system. The Windows will take care of and automatically re-install the TPM driver after the system reboot. The steps are:

1. Open the Device Manager
2. Scroll down and expand the Security devices section
3. Right-click on the Trusted Platform Module 2.0 (or TMP 1.2)
4. Select the Uninstall device option
5. Press the Uninstall button in the box that pops up.

Reboot your system and Windows will install the device again. Now launch Outlook and sign in to authenticate. You shouldn’t face the problem anymore.

Related: The TPM could not be initialized after the BIOS update

4] Update TPM Firmware

If uninstalling the TPM driver and resetting TPM to its default state doesn’t help in any way, then you should update the TPM firmware. The best way to do this is by updating Windows. You need to check for updates and if there is a new version of Windows, download and install it. If the TPM firmware is not included with Windows updates, then you can manually download and install TPM firmware updates from the OEM website.

5] Use a new User Account or Profile

Another workable option to get rid of this Internal error has occurred within the Trusted Platform Module Outlook error is by using a new user account or user profile on your Windows 11/10 computer. For some users, the problem continued on a particular user account but they were able to access Outlook using another user account on the same computer.

So, most probably the problem is with the account or user profile only. It might be corrupted or have some other issues. Therefore, you should create a new user account or profile on your Windows 11/10 computer. In the Accounts category of the Settings app, access the Other users’ section to add a new Microsoft account or local user account. Now try to authenticate with Outlook using the new user account. The problem shouldn’t bother you anymore.

Hope these options will help.

How do I fix Outlook Trusted Platform Module has malfunctioned?

If you encounter a TPM error after entering sign-in credentials to the Outlook client on a Windows 11/10 system, then you should first clear all the Office credentials stored on your system and try again. If that doesn’t work, then your should re-install TPM (TPM 2.0 or TPM 1.2 available on your system). Updating firmware or clearing TPM can also be helpful to get rid of such a TPM error. If you need assistance in performing these solutions, then read this post.

How do you fix the device can’t use a Trusted Platform Module?

To fix This device cannot use Trusted Platform Module error, you need to open the Local Group Policy Editor. Then, open the Require additional authentication at startup setting and choose the Enabled option. Finally, click the OK button and restart your computer to get the job done.

Read next: TPM missing or not showing in BIOS.