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QuickBooks Error 12009

QuickBooks has been a powerful and versatile tool for decades, fulfilling businesses' bookkeeping and accounting requirements. A significant component of the software is its payroll service, which aids organizations in maintaining a transparent pay structure for their employees. However, many users have recently encountered a common issue, QuickBooks error 12009, while using the payroll feature.

This error occurs when users attempt to access QuickBooks after downloading the latest payroll update. It's frustrating for many users to encounter such an issue during a routine software task like updating. A sudden loss of internet connection can cause an interrupted and glitchy installation, resulting in this error. Consequently, users cannot complete tasks because QuickBooks may start behaving unexpectedly. If you're experiencing this problem, read the detailed blog below for further insights.

Struggling to resolve update error 12009? Contact our experienced professionals for an effective solution to eliminate the error. Call us now at our Toll-Free Number 1.855.856.0042.

Causes Responsible for Error Code 12009 in QB

QuickBooks error code 12009 can arise for various reasons, including an unstable internet connection. Here are a few common causes that can trigger this issue:


  • An inconsistent internet connection can disturb the QuickBooks application, creating performance difficulties and perhaps resulting in error 12009. Having a steady and dependable internet connection is critical for avoiding such issues.

  • Interference from the system's antivirus or firewall can affect QuickBooks processes, potentially resulting in error 12009. Changing these security settings to enable QuickBooks access can help address this problem.


Recommended to Read: How to Fix QuickBooks Error Code 50004

Solutions to Fix QuickBooks Payroll Error 12009 

Users can attempt various methods to resolve error 12009. 

Solution 1: Set Internet Explorer the Default Browser

QuickBooks heavily depends on Internet Explorer for its operations. It's crucial to have IE set as the default browser to prevent program malfunctions.


  • In the Internet Explorer, head to the upper right corner.

  • Choose the Tools option.

  • Next, click on Internet Options from the drop-down menu.

  • In the Programs tab, look for the Default Web Browser section.

  • Here, choose the Make Default button, then hit the OK button.

  • Close and reopen your browser, then check QuickBooks to see whether the problem 12009 has been fixed. 

Solution 2: Adjusting Firewall and Internet Security Configurations

Ensure the firewall or internet security software does not block QuickBooks operations.


  • Search for the Windows Defender Firewall.

  • Click on Allow an app or feature through Windows Defender Firewall. 

  • Click on Change Settings. Administrative privileges may be required to proceed.

  • If QuickBooks is not listed, choose the option to Allow another app. If it's already listed, ensure both private and public network options are enabled.

  • Locate the QuickBooks executable file in its installation directory and add it to the allowed apps list.

  • Ensure that QuickBooks has the required permissions for both private and public networks.

  • Once QuickBooks is added with the appropriate network permissions, click OK to save the changes.

  • Restart your computer to apply the updated firewall settings effectively.


This blog aimed to provide a straightforward approach to resolving QuickBooks Error 12009 by outlining its causes and troubleshooting steps for users to address independently.  Nevertheless, you might also come across QuickBooks update error 12007 while using the payroll feature. In that case, you may contact our experts anytime at our Toll-Free Number 1.855.856.0042, available 24/7.

Read More: How to Fix QuickBooks Black And White Screen