How to Fix TPM Error in Office 365?

Jenny Lowrence | April 6th, 2026 | Office 365

Have you encountered TPM error in Office 365 when you try to sign into Microsoft 365 applications? If yes, you’re not alone! Many users are facing the “Trusted Platform Module Malfunction” error while accessing their accounts. In this article, we’ll provide some effective methods to fix TPM problem Office 365.

TPM (Trusted Platform Module) is a security chip on your computer that helps protect data like encryption keys, passwords, etc. Office 365 TPM error usually occurs when your system fails to use its security feature properly for authentication. It prevents you from signing into Microsoft 365 applications.

Why Does TPM Error in Office 365?

Here are some common reasons for TPM problems in Office 365:

  • The TPM chip stores security keys used for login. If these keys become corrupted, Office apps cannot activate your account.
  • Stored login credentials may conflict with updated account details, leading to TPM error.
  • Windows update or hardware replacement can affect TPM functionality and cause login errors.
  • If TPM is turned off in BIOS, then Office apps won’t be able to use it for secure login.
  • Updates, policy changes, or antivirus interference can affect TPM functionality.

How to Fix Office 365 TPM Error?

Here we are going to explain several troubleshooting steps. So, follow these methods carefully and resolve the TPM error in Office 365.

#1. Reset the Activation State

If the user is an admin, they can set up and use the Enterprise version of Microsoft Support and Recovery Assistant.

  1. Download and open the Microsoft Support and Recovery Assistant.
  2. Choose Office Activation and follow the repair process.

#2. Reset TPM Chip

Sometimes, the TPM chip is malfunctioning, which can contribute to an unrecoverable Office 365 device TPM problem. Simply resetting the TPM configuration may fix TPM error Office 365.

  1. Open Settings >> Privacy & Security >> Windows Security >> Device Security.
  2. Choose Security Processor Details >> Security Processor Troubleshooting.
  3. Choose Clear TPM and restart the computer

#3. Clear Office Credentials

Corrupted credentials may also cause a TPM error in Office 365.

  1. Open Control Panel.
  2. Go to Credential Manager.
  3. Click on Windows Credentials
  4. Remove all office-related entries.
  5. Now, restart your system and log in again.

#4. Disconnect & Reconnect Work Account

If your device has not been fully registered with Microsoft Entra ID, then the device TPM Office 365 issue will remain. Disconnecting and adding the account again may help to fix the error.

  1. Open Settings >> Accounts >> Access work/school.
  2. Choose disconnect your account.
  3. Now, restart your system and select Connect to join this device to Microsoft Entra ID.

#5. Enable TPM in BIOS

Some users try to fix the TPM error in Office 365 by disabling TPM in the BIOS. However, turning off TPM settings can actually be the reason this error occurs.

  1. Reboot your system by pressing F@/F10/Delete to enter the BIOS.
  2. Go to Security >> TPM Configuration.
  3. Set TPM 2.0 to Enabled.
  4. Save and reboot.

Once you have enabled TPM, Office reestablishes secure hardware communication with your system.

Bonus Tips: Protect Your Office 365 Data Before Troubleshooting TPM Error

Before fixing TPM problem Office 365, it’s always a smart move to secure your data. Troubleshooting steps like resetting TPM, clearing credentials, or reconnecting accounts may sometimes lead to temporary data access issues. To stay on the safe side, experts recommend creating a backup of your Office 365 data using a reliable tool like Advik Office 365 Backup Tool. With this utility, you can save Office 365 data such as emails, contacts, calendars, etc. to your system. It allows you to download your emails in a variety of formats such as PST, MBOX, EML, PDF, and more. By doing this, you can eliminate data loss due to Office 365 TPM error.

Final Words

TPM error in Office 365 can interrupt your workflow, but it is usually easy to fix with the right steps. In this article, we have discussed several methods to fix Office 365 TPM error. Whether it’s clearing credentials, resetting TPM, enable TPM in BIOS can quickly resolve the error. If the issue still persists, consider contacting Microsoft Support for further assistance.