If you are a QuickBooks user, then you might be able to relate to this situation where, while working on the QuickBooks software, a warning error message suddenly pops up on the screen indicating “QuickBooks Error 6190 and 816.” Well, this is a frequently encountered error that may show up when multiple users attempt to open a company file in single-user mode. Another situation where you may bump into such an error is in case of there is any mismatch between the transaction log file and the company file. As a result of this error, it is possible that you may lose all important files stored within the QBW company file.
This write-up will provide you with a detailed understanding of the QuickBooks error 6190 and 816, along with the possible causes behind the error and the effective troubleshooting solutions to fix it. Moreover, getting in touch with our U.S. based accounting professionals can also help you resolve the issue quickly. You can connect with our technical experts by calling our support number and get your issue resolved in no time.
What is QuickBooks error code 6190 and 816?
QuickBooks error 6190, 816 is part of the 6000 series errors that occurs when a user attempt to open a company file in multi-user mode. This error generally encounters when the company file and transaction log file do not match or the company file becomes damaged. The main reason behind to this error is a discrepancy between the .QBW (company file) and .TLG (transaction log file). This mismatch prevents QuickBooks from syncing properly, which can disrupt the workflow.
Before we dive in deep to unleash the strategies to troubleshoot this error, it is better to get familiar with this error code and related facts associated with this error. The following error pops up on the screen with a warning message that states as:
| Warning | QuickBooks was unable to open the company file [path] on the hosted system. Error Codes: (-6190, -816) - The transaction log file does not match the company file |

This error can also be seen when you makes an attempt to log in the company file in a single-user mode. It is quite a technical snag that should be fixed asap.
What leads to QuickBooks error code 6190, 816?
There can be several reasons behind to the occurrence of QuickBooks error code 6190 and 816, including:
- The TLG and QBW files doesn’t match the company file.
- If company files may be updated on a different computer without updating the transaction log file.
- Data corruption in the QuickBooks company file is another potential cause of this error.
- Software installation is left incomplete or when the download becomes corrupt.
- There is corruption in the Windows registry from a recent QuickBooks-related software change.
- The error may also appear when accessing the company file in single-user mode.
- Some virus or malware infection may have damaged your important QuickBooks company files.
- Any other program maliciously deleted the QB-related files, thereby triggering such errors in QuickBooks.
Signs and symptoms of QuickBooks error 6190 and 816
Identifying the QuickBooks error 6190 and 816 is very much important, so as to work towards rectify it. So, here are a few of the signs and symptoms that can be considered:
- The error code itself displays on the screen and crashes the active program window.
- Windows runs sluggishly and responds very slowly to the keyboard and mouse inputs.
- The system freezes periodically.
- The system stops responding and freezes more frequently.
- The company file and transaction log file don’t match with each other, and the company file becomes corrupt.
Methods to Resolve QuickBooks Error 6190 816
The fixes of this error largely depend upon the factors triggering the issue. Below, we will be exploring the quick fixes one by one. Let's know how to fix QuickBooks error 6190, 816 when QuickBooks was unable to open the file [path] on the host computer.
Method 1: Troubleshoot the mismatch
Often you might come across this error, when there is a mismatch between the transaction log file and the company file. In such a scenario, it becomes important for you to troubleshoot the mismatch. Perform the steps provided below
- Initially, navigate to the company folder.
- Search for the Transaction folder. The company folder and the transaction folder might have the same name, but their extensions might vary. You will have to identify the Two files by their extensions.
- Head forward by right-clicking the Company files and also select to Rename option to change the name, but avoid changing the extension of the file.
- Moreover, change the Transaction file name as well.
- Lastly, close the software and then open it once again.
Method 2: Update QuickBooks desktop and the backup files
If you’re experiencing the problem because you’ve updated your company file using a different computer but not changing the transaction log file, then you should update your software of the backup files to fix the problem. The steps, in this case, are the following:
- Firstly Update the QuickBooks desktop.

- Head to Help menu of the menu bar and then choose Update the QuickBooks desktop option.
- Once done, proceed to the Options tab and tap on Mark all option, and hit on Save option.
- Next step is to hit on Update now tab and also mark the Reset update box.

- Proceeding ahead, tap on Get updates tab.

- When the message update displays on the screen, close QuickBooks.
- Reopen QuickBooks, and Install updates, if any.
- Rebooting the system is the final step in this solution.
- If the steps fail in rectifying the running issue, then scroll down to the next solution.
Read this Also: Simple Steps to Fix QuickBooks Internet Explorer is Turned Off Issue
Method 3: Rename the .ND and .TLG Files
Follow the steps given below to rename the .ND and .TLG files successfully.
- Open the folder where your QuickBooks company file is stored.
- Look for files with the same name as your company file but ending with:
- Example:
- .ND (i.e. CompanyFile.qbw.nd)
- .TLG (i.e. CompanyFile.qbw.tlg)
- Now hit a right-click on each file and select Rename.
- Add .OLD at the end of the file names.
- Example:
- CompanyFile.qbw.tlg.old
- CompanyFile.qbw.nd.old

- Once done with that, press the Enter key to save the changes.
- Now open QuickBooks and company file.
- QuickBooks will automatically create new .ND and .TLG files.
Method 4: Run QuickBooks file doctor tool
You might end up in QuickBooks error 6190 due to data corruption in QuickBooks company file. To resolve this, running the QuickBooks file doctor tool is recommended. Implement the following steps:
- Kick start the process by Downloading and installing the QuickBooks file doctor tool from the official Intuit website.
- Ensure that you are Logged in as admin and run the tool.

- Later you will see two pop-ups on the screen stating:
- Both file damage and connectivity
- Network connectivity only
- Select the first option, and it will spot the damaged file and permit you to fix the issue.

- Heading forward, enter the Admin password on being prompted.

- You should pay heed to the prompt asking if the company file is stored on the Workstation or server.
- In case the file is on the server, hit a click on Yes tab or else hit the No tab.
- Lastly hit on Proceed tab.
See it also: How to Export Reports as Excel Workbooks in QuickBooks Desktop?
Method 5: Use the QuickBooks refresher tool
The QuickBooks refresher tool is designed in a way to fix the QuickBooks 6000 error series. One can easily download and run the diagnosis by using the below steps:
- Start the process by closing the QuickBooks desktop on all the systems.
- Head forward by downloading the QB refresher tool from the official Intuit website.

- Look for the qbrefresherv1.exe file in the downloads and open it.
- Click on the opt stating Fix my QuickBooks in refresher tool, and wait till the diagnosing process is complete.
- Once the repair gets complete, open the QuickBooks desktop and check if you are able to open the company files or not.
Method 6: Install QuickBooks database server manager on the server
Another method is to install the QuickBooks database server manager on the server. The steps to be performed here in are as follows:
- In the inception, download the QuickBooks database server manager on the server and then install it.
- Subsequently, proceed to the Start menu.
- In the Search tab, enter QuickBooks database server manager.

- You will then have to open QBDBSM.
- Moreover, update this database manager to the latest version.
- Now restart the server after the update process ends.
- Finally, open the QuickBooks desktop on all of the workstations and server.
Read it Also: How to Fix QuickBooks Update Error 15217?
Method 7: Update the Windows
Another method that one can try out is to update windows. The steps that can be performed in here are as follows:
- Starting off, head towards the Start menu.
- Hit on the Settings tab and pick the Update and security option.
- Furthermore, open the Windows update tab.

- Head forward by clicking on the Check for updates option. In case there are any updates available, then they would start downloading automatically.

- Once the update is complete, it is recommended to reinstall QuickBooks software.
We hope now, performing the above steps; you have successfully fixed the ongoing issue. If still not, then try the below-given steps too.
Method 8: Repair the Windows Registry files
- Move to the Windows icon.
- Further click on Start menu located at the bottom.
- Start typing command prompt in the search bar
- When opening the command prompt ensure to use the Ctrl + shift + enter keys.
- This will prompt you to enter the Admin login details so that you can open the command prompt window admin rights.
- In the common prompt window, you need to type in Regedit

- Hit on the Enter key to Continue.
- As you see the registry editor window, click on the key linked with the error.
- Heading forward, hit a click on Export tab.

- Also, press the Save tab.
- Ascertain to save the file with the .reg extension.
- Continue with the on-screen prompts to complete the process.
You can also see: What are Ways to resolve the QuickBooks Payroll Error 30114?
Method 9: Remove the temporary files
- You need to open the Windows search bar by clicking on the Start menu.
- Also type Run in Search bar.
- In the run window, type in Cleanmgr.

- Then hit on the Enter key.
- A disk cleanup window will display now. You can select the Junk file size and also click on OK tab.

Method 10: Restore Windows system
- Press the Windows icon or click on the Start tab.
- Look for System restore using the Search bar.
- Heading forward, you need to use Enter tab.
- Also open the System restore tool option.

- Perform the on-screen prompts displayed on the screen.
- You also have to Enter the password if needed.
- The restoration process would take a few minutes to Finish the process.
- After the system is restored completely, you can continue working with your QuickBooks desktop.
Related Post: Steps to Print W-2 Forms in QuickBooks Desktop
Final Words...!
This error is a pretty common error that can cross your path while you try to log in to the company file in single-user mode. Incorporating the above stated set of strategies would surely help in rectifying the QuickBooks error 6190 and 816. Whereas, if for some reason the error prevailed or you are stuck at any point of time, then in that case getting in touch with our technically sound QuickBooks enterprise customer support experts is strongly recommended.
FAQ’s
What is error 6190 816 in QuickBooks?
QuickBooks Error 6190 is a company file error that occurs when the transaction log file (.TLG) does not match the company file (.QBW). It prevents QuickBooks from opening the file, especially in multi-user mode.
Can QuickBooks File Doctor fix Error 6190?
Yes. File Doctor is one of the most effective tools to scan and repair corrupted company files that trigger Error 6190.
What role do .ND and .TLG files play in this error?
If the .ND or .TLG files get corrupted or mismatched, QuickBooks may fail to open the company file and show Error 6190. Renaming these files often resolves the problem.
What error message appears when QuickBooks Error 6190 816 occurs?
When this error occurs, the following error message may appear on your screen:
"QuickBooks was unable to open the file [path][filename] on the host [hostname]. Please try again later. If the problem persists, contact Technical Support and provide them with the following error codes: (-6190,-816)".
Is my company data lost due to Error 6190?
No. Your company data is safe. This error is related to file access and synchronization, not data deletion. Once fixed, you can access your data normally.
Other Suggested Reads:
How to Fix QuickBooks Error 2147221000 when running Client Ready Payroll Report?






