How to Fix QuickBooks Error 6073 99001: Unable to Open the Company File

QuickBooks Error 6073 99001 is a common problem that stops people from opening or getting to their company files. QuickBooks is a great way to keep track of your finances, but getting this error can mess up your work and make you angry for no reason. This error generally occurs when someone else or the company file is being accessed in a different way, which is often because of problems with the network connection, problems with file access, or a corrupted company file. Almost all versions of QuickBooks, including Desktop (Pro, Premier, Enterprise), Online, and Point of Sale (POS), encounter this error.

Why Does QuickBooks Error 6073, 99001 Occur?

Several factors can trigger this error, including:

• Network connectivity issues—If QuickBooks is hosted on a server, network problems can block access.
• Corrupted company file—Damaged or incomplete file transfers can cause this error.
• Multi-user mode conflicts—Another user may have the file open in single-user mode.
• Insufficient permissions—The user account may lack the necessary access rights.
• QuickBooks installation issues—A corrupted installation can prevent file access.
• Firewall or antivirus blocking access—Security software may restrict QuickBooks from opening the file.

Signs You’re Facing This Error

The clearest sign is, of course, the error message itself popping up on your screen. You’ll see something like

If you’re seeing this, it’s time to troubleshoot!

Before You Start Fixing: Quick Checks!

Let’s do a couple of quick checks before we dive into the solutions. These can sometimes resolve the problem right away!

• Check All Computers: Make absolutely sure that the QuickBooks company file isn’t open on any other computer, especially not in single-user mode. Ask everyone who might use it to check their machines.
• Verify Network Connection: Make sure the computer you’re on has a good network connection to the server or computer where the company file is stored.
• Restart All Computers: Sometimes, a full restart of all computers connected to the QuickBooks file (including the server) can clear up temporary glitches.

If those quick checks don’t get you in, let’s move on to the tried-and-true solutions!

How to Fix QuickBooks Error 6073, 99001

Here are the 8 best ways to resolve QuickBooks Error codes 6073 99001 quickly and easily.

Solution 1: Restart QuickBooks and Your Computer

At first, try a simple restart to resolve temporary glitches.

1. Close QuickBooks.
2. Restart your computer.
3. Open QuickBooks and try accessing the company file again.

Solution 2: Open the Company File in Single-User Mode

Next, Ensure No One Else is Logged In, check if another user has the file open in single-user mode.

1. This is crucial. You need to make sure the file is truly closed everywhere.
2. At first, ask everyone who might be using the QuickBooks company file to completely close QuickBooks on their computers.
3. Then, go to the computer that hosts the company file (the server or main computer).
4. Next, check if QuickBooks is running there. If it is, close it completely.
5. At last, try opening the company file from your workstation again.

Solution 3: Rename the .ND and .TLG Files

Next, renaming these files can help QuickBooks recreate them.

1. At first, go to the folder where your QuickBooks company file (.QBW) is saved.
2. Then, look for files with the exact same name as your company file, but ending with .ND and .TLG (for example, if your file is MyCompany.qbw, look for MyCompany.qbw.nd and MyCompany.qbw.tlg).
3. Next, right-click on the .ND file and choose “Rename.” Add .OLD to the end of its name (e.g., MyCompany.qbw.nd.OLD). Do the same for the .TLG file (e.g., MyCompany.qbw.tlg.OLD).
4. At last, try opening your QuickBooks company file again. QuickBooks will automatically create new .ND and .TLG files.

Solution 4: Use the QuickBooks File Doctor Tool

This powerful tool can fix many company file and network-related issues.

• At first, close QuickBooks on your computer.
• Then, download and install the QuickBooks Tool Hub from Intuit’s official website (just search for “QuickBooks Tool Hub”).
• Next, open the Tool Hub.
• After that, go to the “Company File Issues” tab.
• Then, click “Run QuickBooks File Doctor.” (This might take a few minutes to open).
• At last, choose your company file, select “Check your file and network,” and follow the on-screen steps to let it repair. Once done, try opening your file.

Solution 5: Copy the Company File to Another Location

Next, try moving the file to a different folder.

1. At first, locate your company file (usually with a .QBW extension).
2. Then, right-click the file and select Copy.
3. Next, paste it into a different folder (e.g., Desktop or Documents).
4. At last, open QuickBooks and try accessing the copied file.

Solution 6: Restore the Company File from a Backup

At last, if the file is corrupted, restore it from a backup.

1. Firstly, open QuickBooks and go to File > Open or Restore Company.
2. Then, select Restore a backup copy and click Next.
3. Next, choose Local Backup and browse to the backup file (.QBB).
4. Next, select the file and click Open.
5. At last, follow the prompts to restore the backup.

Solution 7: Check Network and Firewall Settings

Next, ensure your network and firewall allow QuickBooks access.

1. Check network connectivity – Ensure all computers are on the same network.
2. Disable firewall temporarily – Temporarily turn off your firewall and try accessing the file.
3. Add QuickBooks to firewall exceptions – If the problem keeps happening, add QuickBooks to your firewall’s whitelist.

Solution 8: Reinstall QuickBooks

If the error persists, at last, perform a clean reinstall.

1. At first, uninstall QuickBooks via Control Panel > Programs and Features.
2. Next, download the latest version from Intuit’s website.
3. In last step, install QuickBooks properly and try accessing the company file again.

Preventing Future QuickBooks Error 6073, 99001

To avoid this error in the future:

Need Expert Help? Contact QuickBooks Support!

Do not let QuickBooks Error 6073 99001 ruin your day if you have tried all of these things and it still will not let you open your company file. Sometimes these kinds of errors can be difficult to find and need more analysis.

The friendly staff at QBDataRepair knows a lot about QuickBooks access issues. We can quickly find the problem and open your company file so you can work. If you require immediate assistance, please visit qbdatarepair.com or contact us at 888-368-8874. We are here to help you have a smooth and easy time with QuickBooks.

Frequently Asked Questions (FAQs)

Q1: What is the .TLG file in QuickBooks? A: QuickBooks uses the .TLG file as a temporary logbook to keep track of changes you make to your company file. It helps QuickBooks get data back after a crash, and it is necessary for more than one person to use it.

Q2: Can I just delete the .ND and .TLG files? A: Yes, you can rename them. This is safer than deleting them because you can always go back. The next time you open the company file, QuickBooks will automatically make new ones.

Q3: What does “single-user mode” mean? A: Single-user mode means only one person can access the QuickBooks company file at a time. Multi-user mode allows several people to work on the same file simultaneously over a network. Error 6073 often happens if someone is stuck in single-user mode, preventing others from accessing the file.

Q4: Is it okay to store my QuickBooks file on a cloud service like Dropbox? A: If you open your active QuickBooks company file from a cloud-syncing service (like Dropbox, Google Drive, or OneDrive), it is not a good idea to keep it there. This can cause files to get messed up and make it hard to access them. You should only use these services to store copies or backups of your files.

Final Thoughts

QuickBooks Error 6073, 99001 can be frustrating, but with the right steps, you can resolve it easily. If you need further assistance, contact our QuickBooks Error Support Team at 888-368-8874 for immediate help!

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