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Fix Microsoft 365 Apps Activation Error Trusted Platform Module Has Malfunctioned



Did you know that the “Trusted Platform Module Has Malfunctioned” error is a common issue that Microsoft 365 users might encounter during activation?

The error message indicates a problem with the Trusted Platform Module (TPM) on the computer, which is crucial for the secure activation and protection of sensitive data.

Image credit: Microsoft

Methods to Resolve Microsoft 365 Apps Trusted Platform Module Has Malfunctioned Activation Error

In this step-by-step guide, we will walk you through resolving this TPM malfunction error and ensuring a smooth activation of Microsoft 365 Apps.

Before you begin:

  1. Ensure that your computer meets the system requirements for running Microsoft 365 Apps.
  2. Check that the TPM is enabled in your computer’s BIOS settings.
  3. Back up important files and data to avoid potential data loss during troubleshooting.

Step 1: Update Windows and Microsoft 365 Apps

  • Go to Settings > Update & Security > Windows Update.
  • Click “Check for updates” and install any available updates for Windows.
  • Next, open any Microsoft 365 App (e.g., Word, Excel) and go to File > Account.
  • Under “Product Information,” click on “Update Options” and select “Update Now.”
  • Wait for the updates to install, and then restart your computer.

Step 2: Clear TPM and Re-Initialize

Image credit: Dell
  • Press the Windows key + R, type “tpm.msc,” and press Enter to open the TPM Management Console.
  • Click “Clear TPM” from the right-side panel and follow the on-screen instructions.
  • Once the TPM is cleared, restart your computer and re-open the TPM Management Console.
  • Click on “Prepare the TPM” and follow the prompts to initialize the TPM again.

Step 3: Check for Computer Firmware Updates

  • Visit your computer manufacturer’s website and search for firmware updates for your specific model.
  • Download and install the latest TPM firmware update if available.
  • Restart your computer to apply the firmware changes.

Step 4: Reset TCP/IP Stack

  • Open Command Prompt as an administrator by right-clicking the Start button and selecting “Windows Terminal (Admin).”
  • Type the following commands individually, pressing Enter after each: (1) netsh winsock reset and (2) netsh int ip reset.
  • Restart your computer to complete the TCP/IP stack reset.

Step 5: Reinstall Microsoft 365 Apps

  • Uninstall Microsoft 365 Apps from your computer by going to Control Panel > Programs > Programs and Features.
  • Locate Microsoft 365 Apps, right-click, and select “Uninstall.”
  • After the uninstallation is complete, restart your computer.
  • Sign in to your Microsoft account and reinstall Microsoft 365 Apps from the official website.

What is Trusted Platform Module (TPM)?

Image credit: Microsoft

TPM is a hardware-based security component that provides secure storage for encryption keys, digital certificates, and other sensitive data to enhance system security.

Can I Use Microsoft 365 Apps without TPM?

While some features might be limited, you can still use Microsoft 365 Apps without TPM. However, it is recommended to have TPM enabled for improved security.

How do I Know if TPM is Enabled on my Computer?

You can check TPM’s status in the BIOS settings or by pressing the Windows key + R, typing “tpm.msc,” and pressing Enter to open the TPM Management Console.



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