Resolving QuickBooks Error 3371: A Comprehensive Troubleshooting Guide

QuickBooks Error 3371 is a common issue encountered by QuickBooks users when activating or opening the software. This error message typically states, “Could not initialize license properties” and is often accompanied by error codes like 3371, 11118, 1, or 11104. It can be frustrating as it prevents users from accessing their QuickBooks company files and may disrupt business operations. In this comprehensive guide, we will provide detailed troubleshooting steps to resolve QuickBooks Error 3371 and ensure smooth functionality of the software.

Causes of QuickBooks Error 3371: QuickBooks Error 3371 can occur due to several reasons, including:

  1. Missing or damaged QuickBooks license file: The error can occur if the QuickBooks license file (Qbregistration.dat) is missing, corrupted, or inaccessible.
  2. Outdated Windows operating system: Running an outdated version of the Windows operating system may cause compatibility issues with QuickBooks.
  3. Incomplete or incorrect QuickBooks installation: If QuickBooks was not installed properly or some important files were missed during installation, it can lead to Error 3371.
  4. Issues with the Microsoft MSXML component: Problems with the MSXML component, a Microsoft Windows component required by QuickBooks, can trigger Error 3371.
  5. Antivirus or security software interference: Some antivirus or security software programs may mistakenly flag certain QuickBooks files as threats, leading to Error 3371.

Now, let’s proceed to the troubleshooting steps to resolve QuickBooks Error 3371:

Step 1: Update QuickBooks to the Latest Version

  1. Open QuickBooks and go to the Help menu.
  2. Select “Update QuickBooks” and follow the prompts to download and install the latest updates.
  3. After the update is complete, restart QuickBooks and check if Error 3371 is resolved.

Step 2: Install the Latest Windows Updates

  1. Press the Windows key on your keyboard and type “Windows Update.”
  2. Select “Check for updates” and let Windows search for and install any available updates.
  3. Restart your computer after the updates are installed.
  4. Launch QuickBooks again and check if Error 3371 is resolved.

Step 3: Delete the EntitlementDataStore.ecml File

  1. Close QuickBooks and make sure no QuickBooks processes are running in the background.
  2. Press the Windows key + R on your keyboard to open the Run dialog box.
  3. Type or copy-paste the following path into the Run dialog box and press Enter:
    • For QuickBooks 2018 and later: C:\ProgramData\Intuit\Entitlement Client\v8
    • For QuickBooks 2017: C:\ProgramData\Intuit\Entitlement Client\v8
    • For QuickBooks 2016: C:\ProgramData\Intuit\Entitlement Client\v8
  4. Locate the “EntitlementDataStore.ecml” file in the folder and delete it.
  5. Close the folder and relaunch QuickBooks. Follow the prompts to re-register the software.
  6. Check if Error 3371 is resolved.

Step 4: Use the QuickBooks Install Diagnostic Tool

  1. Download and install the QuickBooks Install Diagnostic Tool from the official Intuit website.
  2. Run the tool and let it scan your system for any QuickBooks-related issues.
  3. Follow the on-screen instructions to repair any detected issues.
  4. Restart your computer and check if Error 3371 is resolved.

Step 5: Manually Resolve MSXML Issues

  1. Press the Windows key + R on your keyboard to open the Run dialog box.
  2. Type “cmd” in the dialog box and press Enter to open the Command Prompt.
  3. In the Command Prompt, type or copy-paste the following commands one by one, pressing Enter after each command:
    • For 32-bit Windows:
      • regsvr32 MSXML4.dll
      • regsvr32 MSXML6.dll
    • For 64-bit Windows:
      • cd \windows\syswow64
      • regsvr32 MSXML4.dll
      • regsvr32 MSXML6.dll
  4. Close the Command Prompt and relaunch QuickBooks. Check if Error 3371 is resolved.

Step 6: Reinstall QuickBooks using a Clean Install

  1. Uninstall QuickBooks from your computer through the Control Panel.
  2. Download and run the QuickBooks Clean Install Tool from the official Intuit website.
  3. Follow the instructions provided by the tool to remove any remaining QuickBooks components.
  4. Reinstall QuickBooks using the installation files or the original installation disc.
  5. Activate QuickBooks and check if Error 3371 is resolved.

Step 7: Contact Technical Support If none of the above solutions resolve QuickBooks Error 3371, it is recommended to contact the official QuickBooks technical support team or consult with a certified QuickBooks professional for further assistance. They can provide more advanced troubleshooting steps tailored to your specific situation.


QuickBooks Error 3371 can be a frustrating obstacle when trying to activate or open QuickBooks. By following the troubleshooting steps outlined in this guide, you can effectively diagnose and resolve Error 3371. Update QuickBooks and Windows, delete the EntitlementDataStore.ecml file, use the QuickBooks Install Diagnostic Tool, manually resolve MSXML issues, reinstall QuickBooks using a clean install, and contact technical support if needed. With these steps, you can overcome QuickBooks Error 3371 and regain seamless access to your QuickBooks company files.

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