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QuickBooks Error 6190, 85 – Causes and Fixes

Published: 19 June, 2025 | Updated: 22 June, 2025

Error Code Experts Staff

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Error Code Experts Staff
QuickBooks Error 6190, 85

QuickBooks Error 6190, 85 usually appears when there’s a mismatch between the company file (.QBW) and the transaction log file (.TLG). This prevents QuickBooks from accessing the file in multi-user mode. The error can interrupt workflow and lead to data accessibility issues if not addressed promptly.

This article explains what this error means, why it appears, how to detect it, and the best ways to resolve it. We also provide preventive tips and assistance options through our support team at Error Code Experts.

Watch this quick video to learn the causes and solutions for QuickBooks Error Code 6190, 85.

What is QuickBooks Error “6190, 85”?

QuickBooks Error 6190, 85 occurs when the company file cannot be accessed, typically in multi-user mode. The error message is:
“QuickBooks was unable to open the company file on the host computer.”
This usually results from a mismatch between the company file (.QBW) and the transaction log file (.TLG), which QuickBooks uses to track pending transactions.

Why does QuickBooks Error “6190, 85” occur?

The error is triggered by various issues related to file handling. Here are the common reasons:

  • The transaction log file (.TLG) does not match the company file (.QBW).
  • Another user is accessing the company file in single-user mode.
  • Data corruption in either the .QBW or .TLG file.
  • Issues in network setup or improper configuration in multi-user mode.
  • Damaged QuickBooks data folder or incorrect file extension names.

How can you identify QuickBooks Error “6190, 85”?

You can identify QuickBooks Error 6190, 85 through the following signs:

  • Error message: “QuickBooks was unable to open the company file.”
  • QuickBooks crashes or freezes when trying to open a file in multi-user mode.
  • You see error code 6190, 85 displayed on screen.
  • Unable to access or modify the company file on the network.
  • System or QuickBooks performance drops while accessing files.

What are the steps to fix QuickBooks Error “6190, 85”?

Several methods can help you fix this error. Follow each solution in the order listed to ensure accurate resolution.

Solution 1: Use QuickBooks File Doctor Tool

This is a basic solution to detect and repair file mismatches and network issues.

  1. Download the QuickBooks Tool Hub from the official Intuit website.
  2. Open the Tool Hub and select Company File Issues.
  3. Click Run QuickBooks File Doctor.
  4. Choose your company file from the list or browse to locate it.
  5. Select Check your file and then click Continue.
  6. Enter your QuickBooks admin credentials when prompted and click Next.

Allow the tool to complete scanning and repair. Reopen your company file after the process.

Solution 2: Rename the .TLG and .ND files

Renaming these files forces QuickBooks to recreate them and eliminate mismatches.

  1. Navigate to the folder that stores your company file.
  2. Find files with the same name as your company file but with extensions .ND and .TLG.
    • For example: CompanyName.qbw.nd and CompanyName.qbw.tlg
  3. Right-click and rename both files. Add “.old” at the end.
    • CompanyName.qbw.nd → CompanyName.qbw.nd.old
    • CompanyName.qbw.tlg → CompanyName.qbw.tlg.old
  4. Reopen QuickBooks and try accessing your company file.

Solution 3: Ensure All Users Exit QuickBooks

Multi-user conflicts can cause this error. Ensure no other users are accessing the file.

  1. Ask all users to log out of QuickBooks.
  2. Restart the system hosting the company file.
  3. Open the company file in single-user mode.
  4. Then, switch to multi-user mode to check if the error resolves.

Solution 4: Move Company File to Local Drive

Sometimes, file path issues can cause the error. Testing it locally can help.

  1. Copy the company file to your local C:\ drive.
  2. Open QuickBooks and access the file from the new location.
  3. If it works, the issue may be related to network permissions or folder configuration.

Is there an automated tool to fix QuickBooks Error “6190, 85”?

Yes, QuickBooks File Doctor, part of the QuickBooks Tool Hub, is the most effective automated tool. It detects file and network-related issues and attempts repairs. Use it as a first step before manual fixes.

How can I prevent QuickBooks Error “6190, 85” in the future?

To avoid QuickBooks Error 6190, 85:

  • Regularly back up your company file.
  • Avoid forcing shutdowns when QuickBooks is running.
  • Keep QuickBooks and its components updated.
  • Limit file access to one user in single-user mode.
  • Use proper network configuration for multi-user setups.
  • Run QuickBooks File Doctor periodically for maintenance.

What if QuickBooks Error “6190, 85” is not fixed after troubleshooting?

If none of the above solutions resolve the issue, the file might be severely corrupted or the network setup might require advanced configuration. In such cases, getting help from professionals is recommended.

How can our experts assist you in resolving QuickBooks Error “6190, 85”?

Our team at Error Code Experts has experience in resolving data file and multi-user errors. We provide personalized assistance to recover your data and configure your setup correctly.

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Error Code Experts Staff

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Error Code Experts Staff

We are a team of certified IT and financial systems specialists with over 10 years of experience in fixing accounting software issues. We specialize in system integration, data migration, and diagnostics - making it easier for accountants and business owners to resolve complex errors. When not solving technical problems, our team enjoys refining internal tools and sharing practical fixes with the wider accounting community.