How to Fix QuickBooks Invalid Product Number?

Micky John
4 min readJul 9, 2024

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Open QBB File without QuickBooks
QuickBooks Invalid Product Number

QuickBooks, a popular accounting software, is known for its robustness and reliability. However, like any software, it is not without its issues. One common problem that users encounter is the “Invalid Product Number” error. This error can be frustrating, but with the right steps, it can be resolved efficiently. In this article, we will provide a comprehensive guide on how to fix the QuickBooks invalid product number error.

Understanding the QuickBooks Invalid Product Number Error

Before diving into the solutions, it is crucial to understand what causes the invalid product number error in QuickBooks. This error typically occurs during the installation or reinstallation process of the QuickBooks software. The primary reasons include:

  1. Incorrect product number entry
  2. Corrupt installation files
  3. Interference from antivirus or firewall
  4. Issues with Windows registry
  5. Problems with the QuickBooks license data

Must Read: QuickBooks Activation Not Working Error

Steps to Fix QuickBooks Invalid Product Number

1. Verify the Product Number and License Key

The first step in resolving this error is to ensure that you are entering the correct product number and license key. Double-check the numbers provided in your purchase confirmation email or the packaging of your QuickBooks software. It is essential to enter these numbers precisely as they are case-sensitive and any discrepancies can lead to the invalid product number error.

2. Run the QuickBooks Install Diagnostic Tool

QuickBooks offers a diagnostic tool that can help resolve issues related to installation errors. Follow these steps to run the QuickBooks Install Diagnostic Tool:

  1. Download the QuickBooks Install Diagnostic Tool from the official QuickBooks website.
  2. Save the file to your desktop.
  3. Run the tool by double-clicking the downloaded file.
  4. Allow the tool to complete the scan, which might take up to 20 minutes.

This tool automatically detects and fixes issues related to the .NET Framework, MSXML, and C++.

3. Temporarily Disable Antivirus and Firewall

Sometimes, antivirus software or firewall settings can interfere with the installation process of QuickBooks. To rule out this possibility, temporarily disable your antivirus and firewall software. Here’s how:

  1. Right-click the antivirus program icon in the system tray.
  2. Select ‘Disable’ or ‘Turn Off’.
  3. Go to Control Panel > System and Security > Windows Firewall.
  4. Click on ‘Turn Windows Firewall on or off’.
  5. Select ‘Turn off Windows Firewall’ for both private and public networks.

4. Rename the QBW.INI File

Renaming the QBW.INI file can help resolve the invalid product number error. This file stores the product and license information for QuickBooks. Follow these steps to rename the file:

  1. Press Windows + R to open the Run command.
  2. Type %ProgramData%\Intuit\QuickBooks and press Enter.
  3. Locate the QBW.INI file in the folder.
  4. Right-click the file and select ‘Rename’.
  5. Add ‘.old’ at the end of the file name (e.g., QBW.INI.old).
  6. Reinstall QuickBooks to regenerate the QBW.INI file.

5. Perform a Clean Installation of QuickBooks

If the above steps do not resolve the issue, performing a clean installation of QuickBooks may be necessary. Here’s how:

  1. Uninstall QuickBooks:
  • Open the Control Panel.
  • Select ‘Programs and Features’.
  • Locate QuickBooks in the list of installed programs.
  • Click ‘Uninstall’ and follow the prompts.

2. Download and Run the QuickBooks Clean Install Tool:

  • Download the tool from the official QuickBooks website.
  • Run the tool and follow the on-screen instructions to complete the process.

3. Reinstall QuickBooks using the installation CD or download link provided at the time of purchase.

6. Modify Windows Registry

Caution: Modifying the Windows registry can cause significant issues if not done correctly. It is recommended to back up the registry before making any changes. Here’s how to modify the registry:

  1. Press Windows + R to open the Run command.
  2. Type ‘regedit’ and press Enter to open the Registry Editor.
  3. Navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Intuit\QuickBooks.
  4. Locate the license data file and delete it.
  5. Close the Registry Editor and restart your computer.
  6. Reinstall QuickBooks and enter the correct product number and license key.

Must Read: QuickBooks Desktop Freezing Up Error

Conclusion

The QuickBooks invalid product number error can be frustrating, but it is not insurmountable. By following the steps outlined in this guide, you can effectively troubleshoot and resolve this issue, ensuring a smooth installation or reinstallation process. Remember to verify your product number and license key, use QuickBooks diagnostic tools, and follow proper installation procedures.

If you have tried all the above steps and still encounter the invalid product number error, it may be time to contact QuickBooks support at +1–855–875–1223 for professional assistance.

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Micky John

As a top QuickBooks support provider, we help small businesses and accountants with all their QuickBooks errors and needs. https://qasolved.com/