# QuickBooks Error 6155 0 – When Your Financial File Refuses to Open

If you have ever sat down to review finances or send out bills and QuickBooks welcomes you with an error message instead of your company file, you're not alone. One of the more frustrating—but surprisingly common—barriers is QuickBooks Error 6155 0.

This is a common error that happens when you're trying to open or access a company file, but you're presented with a message saying that QuickBooks can't open it. It's the digital equivalent of driving in to the office, inserting the key, and finding the door stuck firm.

Let's break down what this error is, why it happens, and—most importantly—how to fix it.

# What is QuickBooks Error 6155 0?

[QuickBooks Error 6155 0](https://asquarecloudhosting.com/quickbooks-error-6155-0/) typically occurs when QuickBooks is unable to open a company file or the corresponding QuickBooks Database Service is not working. The error may just pop up out of nowhere and is typically associated with corrupt files, improper installation, or an interruption in the middle of an update.

In other words, QuickBooks knows the address, but something is stopping it from opening the door.

**The message is generally:**

"An error occurred when QuickBooks tried to open the company file. Try again. If this persists, call technical support. Error numbers: (-6155, 0)"

This is perhaps as pointless as it must feel—you would be hammering your head repeatedly against a wall, for crying out loud.

# Why Does QuickBooks Error 6155 0 Occur?

Just as with the vast majority of software issues, it is because of a couple of usual suspects:

Corrupt or faulty QuickBooks company files

Incomplete or partial QuickBooks install

Obsolete version of QuickBooks

Windows permissions issues

Malware or antivirus interference

**The QuickBooks Database Server Manager is not running.**

It is likely that if you are aware of the reason why it is there, you can apply the correct solution at once and with assurance.

Symptoms That You're Running With Error 6155 0
You could notice or encounter the following:

QuickBooks crashes when trying to open a specific file

The application is frozen or not responding.

You're unable to back up or restore company files.s

The file is opened in read-only or inaccessible state.

If this sounds familiar, let’s move on to the most important part—resolving the issue.
How to Fix QuickBooks Error 6155 0
Here’s your step-by-step game plan for getting back into your books:

Step 1: Update QuickBooks Desktop
An outdated version of QuickBooks can create compatibility issues.

Open QuickBooks (if possible).

Go to Help > Update QuickBooks Desktop.

Select Update Now, then check Reset Update, and hit Get Updates.

Restart QuickBooks after the update completes.

Step 2: Run the QuickBooks File Doctor Tool
QuickBooks File Doctor will fix a corrupted or damaged file.

Download and install the QuickBooks Tool Hub (from Intuit's official website).

Open it and select Company File Issues > Run QuickBooks File Doctor.

Find and select the company file.

Allow the tool to scan and fix the file.

Step 3: Rename the.ND and.TLG Files
QuickBooks uses these support files to open your company file correctly.

Go to the folder where you keep your company file.

Look for files with the same name as your company file but with the.ND and.TLG extensions.

Example: YourCompanyFile.qbw.nd and YourCompanyFile.qbw.tlg

Rename them to something like YourCompanyFile.qbw.nd.old.

QuickBooks will rebuild these when you next open the file.

Step 4: Verify Windows Permissions
Your Windows user account should own the folder where your company file is completely.

Right-click the folder > Properties > Security tab.

Click Edit and ensure Full Control is selected for your user account.

Apply and save.

Step 5: Reinstall QuickBooks (Clean Install)
If nothing else works, your installation could be corrupt.

Use the Clean Install Tool within the Tool Hub.

Perform on-screen actions to reinstall and uninstall QuickBooks.

Don't worry—your data will be safe, but back up your files first as usual.

Bonus Tip: Backup Before It Breaks
If you've already experienced Error 6155 0, chances are high that it will recur—particularly if your files are growing older or get moved around a lot. It's a good habit to form to save your business files by hand or by QuickBooks' backup software every day.

In addition, budget to back up on an external drive or locked-down cloud-based system so you'll never have zilch when your equipment goes down.

# **Conclusion**

[QuickBooks Error 6155 0](https://share.evernote.com/note/d248f084-08a8-964f-9aea-5310f971e839) can be maddening—especially when you're mid-week, mid-task, or mid-crunch. But with the right procedure, it's solely repairable. Whether it's all about updating, repairing, or reconfiguring, now you have the ammunition to get back to work.

The secret is to remain proactive, save frequently, and not hesitate to reach out to utilities such as the QuickBooks Tool Hub. When unsure, call upon a certified QuickBooks ProAdvisor or technical support to prevent jeopardizing your financial information.