June 27, 2025

Applicable Solutions to Troubleshoot QuickBooks Error 80040408

Learn how to tackle QuickBooks Error 80040408 with our comprehensive guide. Discover the causes, effective fixes, and tips for preventing this error. Get your QuickBooks back on track.

QuickBooks has become the most popular accounting and payroll software with unique features. Being a QB user, you must be opening it to manage your company, but ending up with QuickBooks error 80040408 on your screen. If that happens to you, this guide is all you need to fix this error and open the QB program successfully.  

 

When opening, QB error 80040408 suddenly appears on your screen with an error message that reads, ‘Begin Session Error 80040408: Could not start QuickBooks.’ The main reason behind this error is the incorrect preferences settings of QB. Today, we are writing this blog to help you fix this error; follow this blog thoroughly. 

 

This blog is a detailed description of why error 80040408 appeared and how you can fix it. If you find it difficult to follow this, connect with QB professionals at +18557380359 Possible Causes Behind Error Code 80040408 in QuickBooks

 

Multiple factors can be the reason why error code 80040408 prevents you from QuickBooks. Let’s talk about these factors: 

 

  • The QuickBooks company file is damaged or corrupted, triggering error code 80040408 on your screen.

  • The quick-start preference is on, which can be the reason why error 80040408 appears. 

 

Step-by-step Solutions to QuickBooks Error Code 80040408

Here are some suitable solutions that will help you fix QB error 80040408 and open the company file successfully: 

Solution 1: Make the Quick Start Feature Turned Off in QB 

Here’s how to turn off quick start preferences in QuickBooks: 

  • Click on the ‘Edit’ menu in QB Desktop. 

  • From the dropdown menu, select ‘Preferences.’

  • Select ‘General’ preferences and click on the ‘My Preferences’ tab. 

  • From this window, uncheck the ‘Keep QuickBooks running for Quick Startup’ option. 

  • Now, restart QB and try again to open the company file. 

 

If error 80040408 persists, move to the next solution.   

Solution 2: Run the QuickBooks File Doctor Tool to Fix the Data Damages  

Running the QuickBooks file doctor fixes the file and data damages; follow these steps for the same: 

Step 1: Get the Newest Version Tool Hub 

  • Before downloading the tool hub, make sure QuickBooks is closed. 

  • Go to Intuit’s official website and download the newest version of Tool Hub. 

  • When done, save the file in an accessible location. 

  • Open the recently downloaded file (QuickBooksToolHub.exe). 

  • Install this file by accepting the terms and conditions and following the terms and conditions. 

  • When done, double-tap on the tool hub icon and open it. 

The Following Blogs Can Help You: How To Resolve QuickBooks Multi-User Mode Not Working Error?

Step 2: Run the File Doctor to Fix the Data Damages 

  • Click on the ‘Company File issues’ menu in the tool hub. 

  • Select ‘Run QuickBooks File Doctor’ from the dropdown menu. 

  • Further, select your company file in the QB file doctor. 

  • Select ‘Check your file’ to find the data damage, and then click ‘Continue.’

  • Before running this tool, enter the QuickBooks admin password and click ‘Next.’

  • Once this scan is successful, try again to open QuickBooks. 

Read More: How to resolve QuickBooks Error 15241

We hope the above-provided solutions are enough to eliminate QuickBooks error 80040408. There might be possibilities when this does not work for you; if that happens, dial +18557380359 and connect with QB professionals. 

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