How to Resolve QuickBooks Error 6190 and 816? A Comprehensive Guide

Encountering the QuickBooks Error 6190 and 816 while trying to access your company file?

You’re not alone.

QuickBooks, an indispensable tool for many businesses, streamlines accounting with precision. Yet, like any sophisticated software, it’s not immune to hiccups. QuickBooks Error Code 6190 816, predominantly linked to company files, can sometimes make its unwelcome appearance, hinting at potential issues with either the company file itself or the network it’s on. When greeted with the daunting message “QuickBooks is Unable to Open this Company File Error Codes: (-6190, -816)“, it’s natural to seek a swift resolution. Dive into this article, where we unravel the causes and offer comprehensive solutions to get you back on track.

Have you already followed the recommended steps to address QuickBooks Error Code 6190? If so, I strongly advise reaching out to the QuickBooks Data Services Experts at +1-888-538-1314. They are well-equipped and knowledgeable, ensuring a quick resolution to your issue.

What is QuickBooks Error message 6190, 816?

QuickBooks Error 6190 and 816

QuickBooks Error 6190 816 is a common issue encountered when users operate in multi-user mode and QuickBooks faces challenges accessing the company file on the server within the network. The crux of this predicament usually arises when more than one user, apart from the server, activates the Multi-User Mode on their individual systems. As a consequence, the software conveys the message:

Unable to open the company file. Another user might have it open. Kindly request that user to switch to multi-user mode, thus enabling concurrent access. Alternatively, the file could be situated in a read-only network directory. In such cases, it’s advisable to consult with the system administrator for appropriate file permissions.

This error can sometimes manifest in other formats like “QuickBooks error 6190 77”, but the central issue remains consistent across variations. It primarily revolves around accessing company files in a multi-user environment, and the necessary steps need to be taken to ensure smooth collaboration.

Underlying Reasons for QuickBooks Error 6190 and 816

In this section, we’ll be diving into the most common reasons behind the infamous QuickBooks Error Code 6190 816.

  1. Mismatch Between Transaction Log File and Company File: The .qbw.tlg file (transaction log file) doesn’t correspond to the company file. This mismatch can prevent the company file from opening.
  2. Update Failures: This error can arise if a company file is updated on a new device, but its associated transaction log file isn’t. This inconsistency between the files can lead to the 6190, -816 error.
  3. Single User Mode Access: QuickBooks error 6190 can manifest when a company file is accessed by another user in Single User Mode. The limitations in this mode can sometimes conflict with other operations, leading to the error.
  4. Data Corruption in Company File: If the primary data within your QuickBooks company file becomes corrupted, it might cause this error.
  5. Corruption in QuickBooks Program Files: Errors within the core QuickBooks program files can lead to the 6190, -816 error.
  6. Issues with .ND and .TLG Files: QuickBooks uses .ND and .TLG program files for various operations. Corruption or issues in these files can lead to the error.
  7. Connection Issues with Server: If the company file is stored on a server and there are connectivity issues from the workstation, it can prevent access to the file, resulting in Error Code 6190 816 in QuickBooks Desktop.
  8. External Storage Issues: Attempting to access a company file directly from an external storage device, rather than transferring it to the local storage first, can cause connectivity problems.
  9. Virus or Malware Infection: Any malware or virus that interferes with QuickBooks operations can lead to the 6190, -816 error.

By understanding these potential causes, users can better diagnose the specific origin of their issue and apply the most relevant solution.

Signs of Error code 6190 in QuickBooks Desktop

There are a few signs that you may be experiencing QuickBooks Error 6190:

  • You see the error message “QuickBooks was unable to open the file [filename] on the host computer” when you try to open a company file.
  • You are unable to access or work with your company file.
  • You may see other error messages or problems when trying to use QuickBooks.

Tips to Prevent QuickBooks Error 6190 816

Here are some steps and practices you can adopt to minimize the occurrence of QuickBooks Desktop Error 6190 816:

  1. Regular Backups: Always maintain up-to-date backups of your company files. This ensures that in case of any corruption, you can easily restore to a working state.
  2. Single Update Point: If updating the company file, ensure it’s done on the main computer/server first before distributing it to other workstations. This ensures file consistency.
  3. Use Network Drives: Avoid using external storage devices to run your company files. Always use local or network drives to store and run them, ensuring a stable connection.
  4. Multi-user Mode: If multiple users need to work on the software, make sure you’re using QuickBooks in multi-user mode.
  5. Software Updates: Regularly update QuickBooks to the latest version. Software updates often include bug fixes and improvements that can prevent errors.
  6. Healthy System Environment: Ensure that your computer’s OS and network components are updated and free from viruses or malware. Regularly run system checks and utilize reliable antivirus software.
  7. Monitor .ND and .TLG files: These are configuration files that allow QuickBooks to access company files in a network or multi-user environment. Any corruption in these can trigger errors. Periodically check the integrity of these files.
  8. Regularly Check Company File Integrity: QuickBooks has a built-in utility called the Verify Data tool which can identify and fix data issues within a company file.
  9. Avoid Direct Editing: Do not manually edit or alter the QuickBooks-associated transaction log files.
  10. Restricted Access: Limit the number of users who have access to the company files. This not only secures the data but also reduces the chances of unintended changes leading to errors.
  11. Professional Assistance: In case you’re not sure about any operation, always seek help from QuickBooks professionals or trusted IT personnel.

By diligently following these steps and ensuring regular maintenance of your QuickBooks environment, you can significantly reduce the chances of encountering Error Code (-6190, -816).

Feasible Guide to Fix QuickBooks Error Code 6190 816

I hope that you have gained a comprehensive understanding of the possible causes and symptoms of QuickBooks Error Code 6190. If you require assistance with resolving the issue, we recommend following the troubleshooting steps outlined in this article in a methodical manner.

#1: Disable multi-user access in QBDT

  • Make sure to run the QuickBooks and the company file in admin mode only.
  • Next, go to the file menu and then utilities.
Stop Hosting Multi-User Access in QuickBooks
  • From the drop-down hit the ‘Stop Hosting Multi-User Access’ option and then create a backup of your company file or current work.
  • Move to the next set of solutions and use File Doctor and Tool Hub to eliminate QuickBooks Error 6190.

#2: Use QuickBooks File Doctor and Fix Error 6190 in QuickBooks

QuickBooks File Doctor is an integral tool that diagnoses and remedies company file and network issues, including QuickBooks Error Code 6190. By simply running this tool, it scans and resolves file mismatches or corruptions. To effectively use the File Doctor, follow the subsequent steps provided below.

  • If you happen to use QuickBooks Desktop 2019 or later, click on the help tab and select QB tool hub.
  • If you are currently using an older version of QuickBooks Desktop then find the tool hub on the official website of Intuit.
  • Next, download and save the Tool Hub installation file named “QuickBooksToolHub.exe” from where you can access it quickly after the download is complete.
  • Run the installer file, agree to the license and terms, then complete the installation process.
  • You can now choose the QuickBooks File Doctor Tool from the company file issues tab in Tool Hub’s Interface.
  • Select all the files that are troubling you, and QuickBooks File Doctor will automatically repair all the damaged files.

#3: Run Quick Fix My Program Tool from the Tool Hub

The “Quick Fix My Program” tool in the QuickBooks Tool Hub is designed to address and rectify common QuickBooks errors, including the 6190 error. By leveraging this tool, users can swiftly resolve issues without delving deep into manual troubleshooting, ensuring a smooth and uninterrupted experience with QuickBooks.

  • Run the QuickiBooksToolHub.exe file, if you have accidentally closed the program.
  • Else you can switch to the program problems tab and from here run Quick Fix My Program.
  • It will go through all the important files of the software and fix them for you, next it will refresh the software.
  • Now open the company file and start working on it and check if you are still receiving QuickBooks Error message 6190 or not.

You may also read: How to fix QuickBooks Error 6000 77

#4: Rename .ND and .TLG files to remove QuickBooks Error 6190

If you have not done it yet then make sure to update your QuickBooks to the latest release.

  • Close QuickBooks if you are running it currently, Locate your company file and open that folder.
  • Find the files that have the same name as your company file, and check the extension, it should be .ND and .TLG:
rename ND and TLG files
  • Rename these files, Add the word OLD at the end of each file name. Ex: company_file.qbw.nd.OLD.
    • company_file.qbw.tlg
    • company_file.qbw.nd
  • Open QuickBooks again and check if you are still getting the problem code or not.

Note: To avoid causing additional issues, it is crucial to follow specific steps when renaming ND and TLG files as old to fix QuickBooks Error Code 6190 and 816. Firstly, ensure that all QuickBooks sessions are closed and only rename files related to the affected company file. Secondly, add “old” or “backup” to the end of the file name to avoid accidentally overwriting or deleting the original files. If the error persists after renaming the files, attempt to restart your computer and open the file again. If the error still persists, consider trying other troubleshooting steps or reaching out to Data Service Experts for further assistance.

#5: Use QB Refresher Tool

The QuickBooks Refresher Tool can aid in resolving QuickBooks Error Code 6190. It terminates conflicting processes and rectifies the application environment, ensuring QuickBooks Desktop runs smoothly. This tool can be especially effective in resetting core configurations. For detailed usage, see the steps below.

  • Visit the Intuit website and download the QuickBooksRefresher tool.
  • Save the downloaded file to a location on your computer where you can easily access it.
  • Close all open programs, including QuickBooks.
  • Double-click the QuickBooksRefresher tool to start the installation process.
  • Follow the on-screen instructions to complete the installation.
  • Once the installation is complete, open the QuickBooksRefresher tool.
  • Click the “Scan” button to start the scan process.
  • Wait for the scan to complete, which may take a few minutes.
  • If any issues are found, the tool will list them and give you the option to fix them.
  • Follow the on-screen instructions to resolve any issues found.
  • Once the issues are resolved, restart your computer and then try opening QuickBooks again.
  • If the error still persists, you may need to try method 6.

#6: Make a new user in Windows and fix QuickBooks Error 6190

If you encounter QuickBooks error code (-6190, -816), it may be due to using a damaged or corrupted Windows user to run QuickBooks. To resolve this issue, we recommend creating a new user. Follow the steps below to create a new user:

  • Open the Control Panel and now Click on User Accounts and Family Safety.
  • Choose User Accounts and next click on the following: Manage Another Account >> Add a New User.
  • Select the desired user’s name and choose whether you want to add this user as a Standard user or an Administrator user.
  • Choose a strong password and fill it in the password section.
  • Click on Create an account and now switch to this user account, run QuickBooks, and check if you are still getting the QuickBooks Error code 6190 or not.

#7: Update QuickBooks to the recent version and check if it fixes company file issues

To successfully update the QuickBooks Desktop follow these short methods:

  • Take a backup of your work and the company file also.
  • Close QuickBooks and move to the QuickBooks Update Service webpage.
  • Next, Download and run the update.
  • Follow all the instructions displayed and complete the installation.
  • Verify if the update was successful or not and check if you have fixed the QuickBooks message code 6190 or not.

#8: Use Different Locations

Below are the steps to resolve QuickBooks Error 6190 816 by using a different file location.

  • Create a new folder in a different location where you want to store the company file.
  • Copy the company file and all associated files (such as .ND and .TLG files) to the new folder.
  • Open QuickBooks and go to the File menu.
  • Select Open or Restore Company.
  • Choose “Open a company file” and click Next.
  • Navigate to the new folder where you copied the company file and select the file.
  • Click Open.
  • If prompted, enter the username and password used to access the file and click OK.
  • Verify that you can access and use the company file without encountering Error 6190 816 in QuickBooks.

#9: Use the QB Connection Diagnostic tool

The QuickBooks Connection Diagnostic Tool helps address Error 6190 by resolving connection issues with QuickBooks, the company file, and its database. This tool streamlines the resolution process. Follow the steps below for its usage.

  • Download the QuickBooks Connection Diagnostic Tool from the Intuit website.
  • Save the downloaded file to a location on your computer where you can easily access it.
  • Close all open programs, including QuickBooks.
  • Double-click the downloaded file to start the installation process.
  • Follow the on-screen instructions to complete the installation.
  • Once the installation is complete, open the Connection Diagnostic Tool.
  • Click on the button labeled “Scan Now” to initiate the scan.
  • Wait for the scan to complete, which may take a few minutes.
  • The tool will list any errors or issues found, along with recommended solutions.
  • Follow the recommended solutions to resolve any issues found.
  • Once the issues are resolved, close the QuickBooks Connection Diagnostic Tool.
  • Restart your computer and then try opening QuickBooks again.

Winding Up

If you are interested in getting help with QuickBooks error code (-6190, -816), consider reaching out to us at +1-888-538-1314. Our team of certified QuickBooks Data Services professionals has the knowledge and experience to troubleshoot and resolve a wide range of QuickBooks issues. We can help you get your QuickBooks back up and running smoothly so you can get back to business as usual.

What does QuickBooks Error 6190 816 mean?

QuickBooks Error 6190 816 occurs when a user tries to access a company file on a different computer or network and is unable to do so due to an error.

How do I fix QuickBooks Error 6190 816?

You can try checking network connectivity, disabling firewall or antivirus, setting up QuickBooks in multi-user mode, or repairing or restoring the company file to resolve QuickBooks Error 6190 816.

Can QuickBooks Error 6190 816 be resolved on my own?

Yes, you can resolve QuickBooks Error 6190 816 on your own by following the solutions provided in this article.

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James is a Technical Content Writer at QBDATASERVICES, specializing in QuickBooks, Sage50, MySQL Databases, Active Directory, email recovery, Microsoft 365, pattern recognition, and machine learning. He creates engaging technical blogs that help organizations and Database Administrators resolve issues. In his free time, James enjoys social media, web series, books, and experimenting with new recipes.


  1. Urgent help needed! 😰 I’m in a bit of a panic. After recently upgrading to QuickBooks 2023 and having my company file stored on a Windows Server, I’ve been hit with the QuickBooks Error 6190 816. Has anyone faced this issue post-upgrade? I’m quite anxious about the data and really hoping for some assistance. Can someone guide me on this? Thank you so much!

  2. I’m truly sorry to hear about the challenges you’re facing after the upgrade. The QuickBooks Error 6190 816 can sometimes be tricky, especially post-upgrade scenarios. If you’ve already attempted some common fixes and they haven’t worked, it might be time to get expert assistance to ensure the integrity of your data is maintained. Instead of delving deeper into troubleshooting yourself, I’d recommend directly reaching out for professional help. Please call us at +1-888-534-1314, and our team will assist you promptly. We’re here to help and ensure your QuickBooks runs smoothly again.

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