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Fix QuickBooks Error 6000 77 and Access Your Company File

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  • Sep 24, 2025   |
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  • Estimated Read Time : 5 MIN

QuickBooks error 6000 77 is a company file error that prevents QuickBooks from opening a file. The QuickBooks error -77 code points to a file location or an access problem. Understanding the depth of the error, we have crafted an up-to-date guide that covers everything any QuickBooks user requires.

QuickBooks error message 6000 77

We value your time and energy! Walk through this guide and fix the error with a complete understanding to avoid such issues in the future. You will understand the causes behind the error and get the pro-tips based on QuickBooks and its error fixes.

What to do before?

  • Make a fresh backup of your company file.
  • Make sure you can fix the error with your self-attempts.
  • Confirm your company file location.
  • Download and install the QuickBooks Tool Hub if you do not have it in your Windows Desktop version. 

Call a Senior QuickBooks Specialist if: 

  • You have tried 2-3 self-attempts to fix the error and still have not succeeded.
  • No time to fix this complex error, get it resolved immediately with the experts.
  • Doubt of losing the QuickBooks company file and important data.
  • If you are not a QuickBooks technical expert.
  • Do not want this headache and want a quick fix.

Common Causes Behind the Error Code 6000 -77 in QuickBooks

  • Incorrect network configuration
  • Windows Firewall restrictions
  • File location mismanagement.
  • Corrupt Company file

Solutions to Fix QuickBooks Error 6000, -77 with Easy Steps

Solution 1: Run the QuickBooks File Doctor from the QuickBooks Tool Hub

QuickBooks File Doctor Tool

Solution 2: Rename .ND and .TLG Files

You need to know that .TLG and ND files are a part of your company files. It is because of these files that you can access your company file in QuickBooks in a network or multi-user environment.

When these files get damaged, you see such an error while opening your QuickBooks company file. So, we will rename these files to fix the error code 6000, -77. QuickBooks creates these files when the user scans it with the QuickBooks Database Server Manager.

Step 1: Rename .TLG file and .ND file

  • Open the folder containing your company file.
  • Search for the files with the same file name as the company files. Ensure to search with the extension .TLG and .ND.
    • company_file.qbw.nd
    • company_file.qbw.tlg
  • Now, right-click on each of the files and click on Rename. Simply add an extension OLD in each file name. For example, you rename your file as company_file.qbw.nd.OLD.
rename the file name of .ND and .TLG files

Solution 3: Use a UNC path 

  • Using the right-click on the QuickBooks icon, press and hold the Ctrl key. 
  • Click on Run as Administrator. 
Run as Administrator

Note:- Hold down the Ctrl key to prevent QuickBooks from automatically opening the company file. 

  • Click on the File menu.
open a sample file
  • Select the option Open or Restore Company.
  • Click on Open a company file.
  • Finally, click on Next. 
  • Click on Network in the left pane.
  • Browse your company file.

Note:- If you cannot find the company file’s folder, you are required to set folder permissions.

  • Select the company file and open it. 

Solution 4: Configure Firewall and Security Software

We will use a port exception to fix your QB Error 6000, -77. In this solution, we will add a port exception to your Windows firewall for QuickBooks.

  • Click on the Windows Start.
  • Search for Windows Firewall and open it.
  • Click on Advanced Settings.
  • Right-click on the Inbound Rules tab.
  • Click on New Rule and select Port.
  • Finally, hit Next.
  • Ensure to select TCP only.

You would be seeing a field-specific local port. Simply add the ports you need for QuickBooks year version:

  • QuickBooks Desktop 2024
  • QuickBooks Desktop 2023
  • Click Next once you enter the port number.
  • Click on Allow the Connection.
  • Hit Next and ensure to select all profiles.
  • Click Next and create a new rule.
  • Rename it in the format QBPorts(year).
  • Hit on Finish.

Use the above steps to create an outbound rule as well. Instead of selecting Inbound Rules, right-click on Outbound Rules.

AutoBackupExe.exeC:\Program Files\Intuit\QUICKBOOKS YEAR
Dbmlsync.exeC:\Program Files\Intuit\QUICKBOOKS YEAR
DBManagerExe.exeC:\Program Files\Intuit\QUICKBOOKS YEAR
FileManagement.exeC:\Program Files\Intuit\QUICKBOOKS YEAR
FileMovementExe.exeC:\Program Files\Intuit\QUICKBOOKS YEAR
QuickBooksMessaging.exeC:\Program Files\Intuit\QUICKBOOKS YEAR
QBW32.exeC:\Program Files\Intuit\QUICKBOOKS YEAR
QBDBMgrN.exeC:\Program Files\Intuit\QUICKBOOKS YEAR
QBServerUtilityMgr.exeC:\Program Files\Common Files\Intuit\QuickBooks
QBCFMonitorService.exeC:\Program Files\Common Files\Intuit\QuickBooks
QBLaunch.exeC:\Program Files\Common Files\Intuit\QuickBooks
QBUpdate.exeC:\Program Files\Common Files\Intuit\QuickBooks\QBUpdate
IntuitSyncManager.exeC:\Program Files\Common Files\Intuit\Sync
OnlineBackup.exeC:\Program Files\QuickBooks Online Backup

Solution 5: Create the damaged folder again

  • Create a new folder in your computer’s C: drive. 
  • Open the folder that contains your company file.
  • Locate the file .qbw.
  • Right-click on it and select Copy. 
  • Now, open the new folder that was created and paste the .qbw file into it. 
  • To share your company files, set Windows access permissions.
  • Launch QuickBooks Desktop.
  • Open the company file from the new folder location. 

Pro tips 

  • Always ensure that you have saved the file in an easy-to-reach location/folder.
  • Make sure you make a fresh backup of your company file before you fix any errors or make any changes.
  • If you have tried 2-3 attempts to fix the error, do not proceed with more attempts and call a QuickBooks specialist immediately. 
  • Always use the QuickBooks Tool Hub at the first point to fix errors of the 6XXX series. 
  • You can use the QuickBooks Tool Hub only in the Windows Desktop version. 

Conclusion

The QuickBooks error 6000 77 is a file location issue and can be fixed using QuickBooks Tool Hub, and if not, you must use the solutions shared to fix the error. These are recommended fixes that are completely safe and sound.

If the error is still not resolved, it means it requires advanced diagnosis from a QuickBooks specialist. Talk to our senior QuickBooks specialist at +1(866)500-0076.  

Frequently Asked Questions

What is QuickBooks error 6000, -77?
The error 6000 means it is a company file error, and -77 means that QuickBooks is either unable to find the file or is not able to open it safely.

How do I fix the QuickBooks error 6000?
Click on this guide to get an easy and quick-fix solution to fix the QB error 6000 with a complete understanding.

What does -77 mean in QuickBooks error?
-77 indicates that the company file cannot be accessed due to a file location issue or any security threat.

Where should I contact if the error 6000, -77 is not resolved?
If you want to timely fix the QuickBooks error code 6XXXX series, contact a senior QuickBooks specialist at +1(866)500-0076 and save your time and energy. 

What are the causes behind the error 6000, -77?

There are multiple reasons that may cause the error 6000, including improper network configuration, firewall restrictions, or an unstable internet connection.