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If you've been a dedicated user of QuickBooks for an extended period, you're likely familiar with its status as business accounting software developed by Intuit. Geared towards small and medium-sized organizations, QuickBooks provides both on-premises and cloud-based accounting solutions, streamlining tasks such as managing bills and payroll functions. This software has significantly simplified the financial activities of small-scale entrepreneurs and professionals.

Powered by Intuit's adept database, QuickBooks excels in handling business-related stress and evolving demands. However, like any database, it's not immune to occasional issues. One common problem users encounter is corruption in the QuickBooks Company file. When a QBW file becomes corrupted, it becomes inaccessible and unusable until repaired. The repercussions of a corrupt file can be detrimental, making it crucial for users to be knowledgeable about QuickBooks company file repair.

What Are the Signs of Corruption in QuickBooks Company Files?

Understanding when it's necessary to repair a QBW file requires identifying the corruption within the file. Here are some issues you might encounter due to corruption in the QuickBooks Company File:

  • Encountering errors such as "A data problem prevents QuickBooks from continuing" during the Verify Data Utility process or observing messages like "Verify Target: Values in minor don’t match major" on your system screen or in the Qbwin.log file.
  • Experiencing unexpected shutdowns of QuickBooks while attempting to save or delete transactions in QuickBooks Desktop.
  • Noticing discrepancies in reports, particularly on Balance Sheets, where the total assets fail to match the total liabilities and equity.
  • Discovering missing transactions and entries from Lists within your QuickBooks data.
  • Identifying account names preceded by a reference bullet (*) generated by QuickBooks due to the absence of original accounts.
  • Experiencing slow performance in QuickBooks, with tasks taking longer than usual.
  • Encountering issues where invoices and paid bills are inaccurately showing as unpaid.
  • Observing negative balances in the transaction history section.
  • When accessing the Send Feedback Online feature, encountering the Bug Report window displaying an HTML code.

Data damage in QuickBooks can take various forms and occur in different situations. However, it is crucial to highlight that any anomaly altering the appearance of the information could potentially signal QuickBooks corruption.

Generally, QuickBooks data damage appears in many situations and forms, but anything that makes the data look unusual could be an indication of QuickBooks corruption.

Why do QuickBooks Company Data Files Get Corrupted?

The following are a few reasons why QuickBooks Company Data Files can be corrupted:

  • For QuickBooks Pro, when the database file size surpasses 200 MB, and for QuickBooks Enterprise,
  • Lack of resources such as RAM, Virtual Memory, Network Interface Cards, Routers, Network Cables, etc.
  • The hard drive containing the database may develop bad sectors.
  • An unexpected power surge or drop can potentially damage the entire hard drive if proper UPS protection is not in place.
  • Improper system shutdown due to technical or other reasons can result in QuickBooks database corruption.
  • The hard drive storing data may be susceptible to virus attacks.
  • The development of bad sectors on the hard drive where the database is stored.

What are the steps to fix a corrupt QuickBooks company file?

The following are some effective solutions to fix corrupt QuickBooks desktop company files:

Solution 1: Repairing the Company File using the Rebuild Data Tool

  • Initiate the process by navigating to the File menu, proceeding to Utilities, and opting for the Rebuild Data option.
  • Next, select the OK tab on the QuickBooks Information Window.
  • Follow the on-screen instructions to save the backup.
  • Allow the tool to repair the file. This step may take some time, and QuickBooks may appear temporarily unresponsive.
  • After the tool completes the process, select OK.
  • Navigate to the File menu, then to the Utilities tab, and choose Verify Data.
  • Finally, let the tool examine the file for any data issues.

Solution 2: Free Tools to Fix the Company File Issues

The following list of free tools can help you fix the error.

1. QuickBooks Install Diagnostic Tool

The QuickBooks Install Diagnostic Tool is designed to address issues that may arise during the installation of QuickBooks desktop. Additionally, it can diagnose and resolve company file issues, particularly those associated with the Microsoft .NET framework.

2. QuickBooks Component Repair Tool

In addition to repairing the error that prevents QuickBooks from running, this tool is an integral part of the system.

3. QuickBooks File Doctor Tool

The QuickBooks File Doctor tool is integrated into QuickBooks versions from 2016 onwards. Developed and designed by Intuit, it serves the purpose of repairing data corruption, addressing Windows setup issues, and resolving network setup problems.

  • Begin by selecting Company File Issues from the Tool Hub.
  • Next, choose Run QuickBooks File Doctor. Be patient as it takes some time for the file to open. Note that if the tool doesn't open, manually locate and open QuickBooks Desktop File Doctor.
  • Within QuickBooks File Doctor, select the Company File from the drop-down menu.
  • If the file isn't visible, use Browse to search for it.
  • Also, select Check your file and click on the Continue tab.
  • Finally, enter your QuickBooks admin password and click Next.

4. Run Quick Fix My File

Using the My File tool in the QuickBooks tools hub can be a convenient way to fix company file issues. Here are the steps:

  • Select Company File Issues.
  • Next, choose the Quick Fix My File option.
  • Click the OK button and proceed to launch the software.
  • This should address the issue to some extent.

5. QuickBooks Tool Hub

This tool is a recent offering from Intuit, serving as a versatile asset. Users can benefit from a range of features, including tools like File Doctor, Condense Data Tool, QuickBooks Refresher, PDF and print repair tool, Install Diagnostic Tool, Connection Diagnostic Tool, and many others.

Solution 3: Manual Method to Repair QuickBooks Company File

The following steps can be followed to manually repair the QBW file using the Verify & Rebuild Data utility:

  • Open the data file and log in as the administrator.
  • Choose the Single User Mode and then start the data verification process by clicking on File > Utilities > Verify Data.

A complete rebuild should be performed if the 'Verify' process takes too long or does not complete. If this process takes too long or does not complete, please follow these steps:

  • Create a local copy of the data file from the server.
  • If necessary, enable temporary hosting on the machine where it is copied and open the file, logging in as the administrator.
  • Click on File > Utilities > Rebuild Data.

After the rebuild process concludes, save a copy of the repaired QBW file both on the local machine and the server. Avoid hosting the file on the local machine, and assign a different name to the new file compared to the original one.

Solution 4: Updating and Backing up QuickBooks

In addition to creating a backup of the company file once the methods for fixing the company file are completed, you are also advised to check for any software updates.

  • To address issues, select the Help option in QuickBooks Desktop and proceed to update the software.
  • Regularly run updates and perform data verification and rebuilding to help resolve issues.


Our conclusion to this post is that we hope the information we have provided above and the solutions we discussed will assist you in repairing the QuickBooks desktop company file. If, however, you encounter any problems, you can simply contact our Smbaccountants support team.

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Undoubtedly, QuickBooks stands out as the premier accounting software currently sought after. Entrepreneurs worldwide utilize this software for tasks ranging from payments and bill management to tax-related functions and more. If you're a QuickBooks user, the term "Company File" is likely familiar to you, and you may also be acquainted with the common glitches and errors associated with Company Files that users often face.

What is Company File?

Essentially, the QuickBooks Company file contains the financial records of a business. For entrepreneurs who are new to QuickBooks, creating a company file is a fundamental first step. However, this company file may encounter various issues, and one common issue is a corrupted company file.

How to Identify Data Corruption?

Before resolving the problem, it's crucial to pinpoint the issue. Users can analyze transactions or items through a log, taking note of indications and issues related to items and transactions. Once the examination is finished, the user can proceed to delete the corrupted file. Following this, they should continue down the log, addressing each item until the file is verified. It's important to note that this process follows the completion of the previous Verify Data and Rebuild Data steps. Additionally, users need to review the logs generated by QuickBooks software to verify the data.

How can I find out if the Company File is Corrupt?

To seek a solution to a problem, it is crucial to initially delve into and identify the issue. Therefore, before seeking an optimal solution, the user must verify whether the company file is corrupted. You might wonder how to determine if the company file is corrupted or not. To assist you, we've outlined the symptoms of a corrupted company file:

  • If a discrepancy arises on the balance sheet during an audit,
  • If QuickBooks software abruptly shuts down, possibly due to human errors,
  • Likewise, if the transaction list is absent from the software, In situations where unpaid bills and invoices are erroneously marked as paid on the balance sheet,
  • And when the transaction history reflects a negative balance.

For users to identify the error, they must keep an eye on their software, and any unusual activity is more than enough to identify the real problem.

The Causes of QuickBooks company file corruption

There could be various reasons contributing to this problem, and recognizing these factors can aid in both preventing and resolving the issue. Let's explore some of the causes of data damage:

  • Extended usage on QuickBooks beyond standard hours.
  • If the RAM fails to automatically address the problem and lacks sufficient memory.
  • Potential threats from virus attacks and unauthorized users capable of erasing the database.
  • Issues related to cables, internet connectivity, and the hard disk. Improper shutdown of the PC, such as directly turning off the main switch, which can result in data corruption.

How to Prevent Corruption of QuickBooks Files?

1. Make Regular Backup of Your Company File

While not a direct method to prevent QuickBooks file corruption, regularly backing up your QuickBooks Company file is a valuable practice to safeguard against data loss. Consistent backups ensure the ability to swiftly restore your data in the event of company file corruption. It's crucial to maintain backup copies on multiple sources, guaranteeing the availability of a restorable copy even if one of the backup files becomes corrupted.

You have the option to manually create a backup or utilize Intuit® Data Protect for automated online backups of your QuickBooks data Services.

2. Reduce Your QuickBooks File Size

As you input transactions into QuickBooks, your company file can expand significantly in size. Interestingly, even when transactions are deleted, the file size may still increase. This occurs because deleted transactions are merely marked as such in the database, and the space allocated for these transactions remains unused within the file.

A sizable company file is susceptible to corruption, potentially leading to data damage. To mitigate this, it's advisable to reduce the file size. This can be achieved by:

  1. Creating a new company file.
  2. Utilizing the QB Condense Data utility.
  3. Truncating the QBW file by eliminating transactions for a specific period. However, QuickBooks doesn't provide truncation as a service. To perform this task, you'll need to send the file to a third-party vendor for truncation.

3. Verify Your QuickBooks File

Utilize the integrated 'Verify Data' utility in QuickBooks to detect potential data issues within a company file. Running this utility enables you to uncover discrepancies on invoices or bills, identify missing transactions, and pinpoint deposited payments that may not appear in the 'Payments to Deposit' window, among other potential issues.

To use the Verify Data tool, follow these steps:

  • Open your QuickBooks Desktop application, go to File, and hover over Utilities.
  • Select Verify Data. Click OK when the message "QuickBooks detected no problem with your data" appears. This indicates that there are no issues with the QB data file, and you can proceed to use it.
  • If the message "Verifying finds some problem with your company file" appears, click on View Errors.
  • To address the Company file issues, click on Rebuild Now.

4. Keep Your Hardware and Software Up to Date

Problems with your hardware or software may lead to data damage in the QuickBooks Desktop (QBDT) Company file or result in file corruption. Therefore, it is essential to ensure that your hardware and software are up to date.

Make certain to automatically or manually update QuickBooks Desktop to the latest release (2021). To check if you have the latest release, open QBDT and navigate to the Product Information window to verify the current version. Additionally, install and set up hardware that is supported by QuickBooks.

5. Perform a Clean Installation of QuickBooks Desktop

Failure to conduct a clean QuickBooks installation can potentially harm the QB file. Therefore, it's crucial to uninstall the faulty QB installation. However, ensure that you delete all residual files linked to QB after uninstalling the program to prevent any issues with subsequent installations.

6. Use Uninterruptible Power Supply (UPS Backup)

Abrupt system shutdowns due to power failures while entering data into your QuickBooks data file can lead to file corruption. To address this issue, employ an uninterruptible power supply (UPS) to safeguard the QB file from potential damage caused by temporary power glitches.

A UPS backup, particularly in regions prone to frequent power outages, offers ample time to shut down your system correctly in the event of a power failure.

7. Avoid Using QB Over a VPN

Utilizing QuickBooks over a VPN connection elevates the risk of data damage due to the potential unreliability and insecurity of the connection. While corruption of the QuickBooks file may not occur immediately, it becomes a possibility over time. Therefore, if remote usage of the program is necessary, it is advisable to consider using QuickBooks Online for a more secure and stable experience.

The Steps to Resolving a Corrupted file in QuickBooks

After reviewing the aforementioned details, including causes, symptoms, and preventive measures, the next step is to address the issue. There are two approaches to resolve this glitch: manual intervention or utilizing available tools. We will delve into both processes individually. Without further delay, let's begin:

1. Manual Method

  • Begin by opening the data files and logging in as an administrator.
  • Proceed by selecting the single-user mode.
  • Next, click on "File," then navigate to the "Utilities" option, and finally, select the "Verify Data" option.

If the above process is taking an extended amount of time, users can proceed with the following steps.

  • The user should create a local copy of the data file from the server.
  • If necessary, enable temporary hosting on the machine and open the file with admin login.
  • Proceed by clicking on the 'File' option, then selecting 'Utilities,' and finally choosing 'Rebuild Data.'
  • In the last step, copy and open the file, then log in as an administrator.

2. Free tools available

While the manual method is straightforward and easy, it can be time-consuming. Therefore, users have the option to utilize free tools to repair the QuickBooks Company File. Below, we have listed some of the most commonly used and popular repair tools.

1. Reboot.bat

The first tool is Reboot.bat, which re-registers several QuickBooks related components with Windows. QuickBooks users usually use this tool to resolve this problem.

2. QuickBooks Component Repair tool

Another tool is the QuickBooks component repair tool, which is used to fix issues that may hinder the smooth functioning of QuickBooks.

3. QuickBooks Install Diagnostic Tool

In general, QuickBooks users use the QuickBooks install diagnostic tool to diagnose and fix numerous problems related to QuickBooks, especially Microsoft .NET Framework issues.

4. QuickBooks File Doctor

QuickBooks File Doctor fixes certain kinds of file and data corruption, along with Windows setup issues, and also network setup issues.

Winding Up!

After reading this article, you are now well-versed in the symptoms, causes, preventions, and rectifications of corrupted company files. If you are unable to resolve the problem even after reading this article, it would be best to contact our QuickBooks enterprise support team.


Q 1: How do I fix a corrupt QuickBooks file?


  1. Make a separate backup or file copy of your data file before verifying or rebuilding to protect you against permanent loss of your data.
  2. Run the QuickBooks 'Verify Data' function.
  3. Run the QuickBooks 'Rebuild Data' function.
  4. Run the QuickBooks 'Verify Data' function again.

Q 2: How do I scan data for corruption in QuickBooks?

Ans: Check your company file for errors or data damage before rebuilding it with QuickBooks Desktop's verify tool.

  1. Select File, then select Utilities.
  2. Select Verify Data, then select OK to close all windows. If you see “ Your data has failed the integrity check ” you need to rebuild your file.