Now that we’ve identified the possible causes, let’s move on to the troubleshooting steps. Follow these solutions carefully to resolve QuickBooks Error 6143:

Solution 1: Rename the.ND and . TLG Files

The.ND and . TLG files are configuration files that allow QuickBooks to access a company file in a network or multi-user environment. Renaming these files can help resolve the issue.

1. Navigate to the Company File Directory: Locate the folder where your company file is stored.
2. Find the.ND and . TLG Files: Look for files with the same name as your company file but with.ND and . TLG extensions (e.g., company_file.qbw.nd and company_file.qbw.tlg).
3. Rename the Files: Right-click each file and select “Rename.” Add.OLD at the end of each file name (e.g., company_file.qbw.nd.OLD and company_file.qbw.tlg.OLD).
4. Open QuickBooks: Try opening your company file in QuickBooks again.

Solution 2: Use QuickBooks File Doctor

QuickBooks File Doctor is a built-in tool for fixing common errors, including Error 6143.

1. Download and Install QuickBooks Tool Hub: If you haven’t already, download and install the latest version of QuickBooks Tool Hub.
2. Open QuickBooks Tool Hub: Launch the tool and select the “Company File Issues” tab.
3. Run QuickBooks File Doctor: Click “Run QuickBooks File Doctor” and follow the instructions to scan and repair your company file.
4. Retry Accessing the Company File: Open your company file in QuickBooks after the scan.

Solution 3: Verify and Rebuild Data

Verifying and rebuilding data in QuickBooks can help fix issues related to data integrity.

1. Open QuickBooks: Launch QuickBooks and open your company file.
2. Go to the File Menu: Click “File” and select “Utilities.”
3. Select Verify Data: Click “Verify Data” and let QuickBooks scan your company file for issues.
4. Rebuild Data: If problems are found, return to “Utilities” and select “Rebuild Data.” Follow the prompts to rebuild your company file.

Solution 4: Check for Windows User Permissions

Ensure that you have the necessary permissions to access the company file.

1. Right-click on the Company File Folder: Locate the folder where your company file is stored, right-click on it, and select “Properties.”
2. Go to the Security Tab: Click on the “Security” tab and check the permissions for your user account.
3. Modify Permissions: If your account doesn’t have full control, click on “Edit” and grant full control to your user account.
4. Retry Opening the Company File: Try reopening your company file in QuickBooks.

Solution 5: Perform a Clean Install of QuickBooks

If the above solutions don’t work, a clean install of QuickBooks might be necessary.

1. Uninstall QuickBooks: Go to the Control Panel and uninstall QuickBooks from your computer.
2. Rename Installation Folders: After uninstalling, rename the QuickBooks installation folders to ensure no old files interfere with the new installation. Common folders include:
   • C:\Program Files\Intuit\QuickBooks
   • C:\Program Files (x86)\Intuit\QuickBooks
3. Reinstall QuickBooks: Download the latest version of QuickBooks from the official website and install it on your computer.
4. Restore Your Company File: Open QuickBooks and restore your company file after installation.

Solution 6: Check for Windows Registry Issues

Registry issues can also cause QuickBooks errors. Use a registry cleaner tool to fix any registry issues.

1. Download a Registry Cleaner Tool: Several reputable registry cleaner tools are available online. Download and install one.
2. Scan and Fix Registry Issues: Run the registry cleaner tool and let it scan your computer for issues. Fix any problems that are found.
3. Restart Your Computer: After fixing the registry issues, restart your computer and try opening QuickBooks again.

Solution 7: Disable Security Software Temporarily

Security software can sometimes interfere with QuickBooks operations. Temporarily disabling it can help identify if it’s causing the issue.

1. Open Security Software: Open your security software (antivirus or firewall).
2. Disable Temporarily: Temporarily disable the software. Refer to the software’s documentation for instructions.
3. Try Opening QuickBooks: Open QuickBooks and try accessing your company file.
4. Re-enable Security Software: Remember to re-enable your security software after troubleshooting.