How to Fix QuickBooks Error Code 80029c4a? (Error Loading Type Library/DLL)


Last Update: August 4th, 2025     Author: Adams Williams

Reviewed By: SMBAccountants Editorial Team

QuickBooks Error 80029c4a: error loading type library/DLL cannot load a dynamic link library—did you notice that? This problem usually arises when you launch the QuickBooks program. It displays one or more of the following alerts:

Issue: When attempting to use QuickBooks with a business file, an unexpected error was returned. The name of the company file:
QuickBooks Error 80029c4a
Description: Library/DLL error loading type

QuickBooks-Error-Code-80029c4a-Error-Message

Or your screen can display another problem message.

QuickBooks-Error-Code-Message-80029c4a-Error-loading-type-library-DLL

We have created this section to assist you in resolving this problem by providing the full instructions for resolving this type of QuickBooks error.

What is QuickBooks Error Code 80029c4a?

QuickBooks couldn’t load a system component 80029c4a, commonly known as a run-time error, typically appears when your files are corrupted and prevents you from launching the QuickBooks desktop by showing the error message “80029c4a couldn’t load dynamic link library DLL.” This issue primarily arises when Dynamic Link Library (DLL) files are either damaged or missing as a result of system anomalies.

Struggling With Accounting or Bookkeeping?

Talk to our experts in minutes — No wait time!

  • Free Consultation
  • Fast Response
  • Trusted Experts
Image

You may read this: How to Fix QuickBooks Error 15222

What are the Causes of Error 80029c4a in QuickBooks?

The majority of circumstances cause the error 80029c4a to appear on the screen. A few are as follows:

  • There are a few QuickBooks desktop system files that could be missing or damaged.
  • It’s possible that the QuickBooks program was improperly installed or that the download was damaged.
  • A recent installation or uninstallation of QuickBooks-related software may have damaged a Windows registry item.
  • Malware or a virus may corrupt any of the QuickBooks-related application files or the Windows file system.
  • QuickBooks-related files may have been accidentally or intentionally erased by software.
  • If the file was mistakenly identified as Trojan-infected by the antivirus program.
  • If the DLL files are missing or the QuickBooks components do not start correctly.
  • If the issue itself occurs during Windows installation, Windows startup, or Windows shutdown.

Signs of QuickBooks Error 80029c4a

  • Let’s begin by discussing the potential causes of this problem.
  • Windows operates sluggishly or slowly.
  • The active program window crashes.
  • For brief periods, the system “freezes.”
  • Frequently, your computer system crashes with couldn’t load a system component 80029c4a.
  • When using a computer mouse or keyboard, Windows reacts slowly.
  • Throughout the application installation process, QuickBooks error 80029c4a could show up.

You may read this: How to Resolve QuickBooks Error 179

How to Fix QuickBooks Error 80029c4a

The techniques listed below can be used to remove this error easily. To correct this mistake, you must carefully follow each solution procedure.

Solution 1: Updates to the virus definition and Avast program

Avast program
  • First, you would need to update all of the apps and run an Avast virus definition.
  • You would need to update the antivirus software just in case you are using another one.
  • The Avast icon may be right-clicked. Next, select the Update tab.
  • To upgrade the Avast software, select the software tab now and follow the instructions.
  • Choose the Engine and virus option after repeating the instructions.

Solution 2: Running the file Reboot.bat

Run-Reboot_bat-file
  • Close your QuickBooks desktop first.
  • Now, access the folder where the reboot.bat file is located.
    • Perform a single right-click on the QuickBooks Desktop icon.
    • Choose Properties now.
    • Click “Open File Location” just once.
  • To run the reboot.bat file as a system administrator, right-click on it and choose Run.
  • Now, you have to make certain that the Windows Administrator is used to run reboot.bat.
  • The window folder options settings file that appears as bat, reboot, or reboot determines this.bat
  • The window that showed as manual should not be closed. (This will use scrolling features to open a blank window). When your reboot.bat utility is finished, this will shut.
  • Finally, restart the computer.

Read this: How to Fix QuickBooks Error 80070057

Solution 3: Ensure the Antivirus Program have been Quarantined.

  • Unintentionally, some antivirus software prevents QuickBooks from loading the necessary files.
  • You must check your antivirus software for items that have been placed under quarantine.
  • Just remove and reinstall QuickBooks on your computer. This enables the user to successfully launch your QuickBooks software.

Permit access via your firewall if you find any of the programs listed below in quarantine:

Permit access via your firewall

Important Note:

  • You may find the majority of these files under C:\Program Files\Intuit\QuickBooks (year).
  • 64-bit versions are those that have (x86) in the location, such C:\Program Files (x86)\Intuit\QuickBooks 20XX.

Solution 4: Updating QuickBooks Desktop Latest Version

Free QuickBooks updates are available from Intuit for as long as the program is in use. These updates can be deployed automatically or whenever it is most convenient for you. Generally speaking, the updates address internal flaws and defects that you may not be aware of to resolve application issues. The QuickBooks software should be updated with caution, though, particularly if network systems are being used.

Since every system on the network will be running the same version of the program, it has been observed that under certain circumstances, upgrading the application may end up forcing an update for every user. Steer clear of upgrading during business hours since this might result in needless delays. How to upgrade QuickBooks to the most recent version:

  • Navigate to the File menu, and then select the Close Company or logoff option.
  • The next step would be to click on the File and then select Exit.
  • Now, you need to verify that you are the system administrator and logged in.
  • Make sure that the system is free of any open company files.
open company files
update-quickbooks-1
  • You then have to select the Options tab.
Update-your-QuickBooks-by-clicking-on-the-same-2
  • After choosing the Mark All option, click the Save button.
  • Your next step will be Pressing the Update Now tab.
  • Next, select Reset Update, and finally select Get Updates.
update-quickbooks
  • A pop-up saying “update successful” will appear after the upgrade procedure is complete.
  • Close the QuickBooks program by using the Esc or Alt + F4 keys.
  • Click the Yes tab after launching the QuickBooks desktop.
  • Finally, restart the computer once to see if the problem has been resolved.

Solution 5: Perform a QuickBooks Windows Repair.

Follow these procedures to carry out a Windows Repair in QuickBooks:

  • Make sure your QuickBooks desktop program is closed before proceeding.
  • You may access the Start Menu by pressing the Windows button on your keyboard.
  • Locate and launch the Control Panel on your computer from the Start Menu.
  • Find the “Uninstall or change a program” item in the Control Panel and click on it.
  • Locate QuickBooks and choose it from the list of applications.
  • Once QuickBooks has been chosen, select “Uninstall/Change program.”
Uninstalling-an-associated-QuickBooks-desktop-entry-Uninstall-or-change-a-program
  • In the QuickBooks installation window, you need to select the Next option.
  • You need to select the Next option after pressing the “Repair Radio” button, and click “Next.”
  • To begin the repair procedure, click the “Repair” button located at the bottom of the window.
QuickBooks installation
  • Click “Finish” after the repair process is complete.

You should be able to fix your QuickBooks program after following these procedures. Restarting your computer is advised to implement all of the changes. To complete the procedure, make sure your QuickBooks program launches properly by opening it. This will confirm that the repair procedure was successful.

Solution 6: Using the Windows System File Checker

Using the Windows system file checker is the next way to fix the problem. Let’s go for the below actions:

  • After selecting the Start tab, put Command into the search field.
  • Hold down the Ctrl + Shift tabs key while simultaneously pressing the Enter key.
  • Then, when the permission dialogue box shows up on the screen, click yes.
  • To proceed, you must type SFC/scannow and press Enter.
Windows System File Checker
  • Wait until the QuickBooks 80029c4a scan is finished by the system file checker.
  • Finally, the problem will be fixed if you follow the on-screen instructions.

Solution 7: Perform a Clean Install QuickBooks Desktop

  • It is the user’s responsibility to compile all of the QuickBooks product details.
  • Next, download the QuickBooks installer for that specific version.
  • If the product was purchased digitally, the user will now have the license number, which is visible on the original box or in the email confirming the purchase.
  • Next, take note of the product’s version and year.
  • Additionally, remove QuickBooks Desktop.
  • The next step is to launch the Control Panel by searching for it in the Windows Start menu.
  • Now select either the Uninstall a program option or the Programs and Features option.
  • The following action is to choose the QuickBooks version from the list.
  • After that, select Uninstall/Change and then select Remove Options.
  • Now, you will have to Click Next and adhere to the prompts displayed on the screen.
  • After reinstalling QuickBooks Desktop, you can proceed.

Read this: Efficient Way of How to Reinstall QuickBooks Using Clean Install

Solution 8: Upgrade your security software.

Upgrade your security software

Before adding the program/component exceptions, you must upgrade your security or antivirus software to the most recent version.

  • Update the security or antivirus program to the most recent version first.
  • Per your documentation, add the program/component exceptions.
  • You must now launch QuickBooks once again.

Solution 9: Restart your computer and enter administrator credentials.

Remember these things before you begin using any solutions:

  1. To protect your information from any unanticipated events during the troubleshooting procedure, backup your important data.
  2. Close any background apps that are active at the moment.
  3. Examine how stable your internet connection is.
  4. Switch off your antivirus software for the moment.

The following actions will restart your computer and allow you to log in as an administrator:

Step 1: Close the background processes for QuickBooks.

  1. To launch the Task Manager, press Ctrl + Shift + Esc.
  2. Put an end to all running programs.
  3. You should also choose the Processes tab.
  4. Look for any QuickBooks-related processes, such as QBW32.EXE, qbupdate.exe, and QBDBMgrN.exe.
  5. To stop any of these processes, select them and then click the End Process button.

Note: Keep in mind that you should only end a process if you know how it works. Stopping critical system processes might lead to issues.

Step 2: All at once, press the Alt+4 keys on your keyboard. From the Shut Down Window, select the restart option.

Shut Down Window

Step 3: Sign in as an administrator to your system.

  1. Select the user icon in the upper left corner of the Start menu after clicking the Start button.
  2. Now, you need to find the Administrator account option from the menu of the list.
  3. You may make the required changes to QuickBooks or any other programs on your system after logging in as an administrator.

Note: Since administrator access gives you total authority over your system, proceed with caution. System harm or data loss may arise from misuse of this power.

Conclusion

We hope that above mentioned steps will be useful to you. Feel free to contact our U.S.-based accounting specialists at Smbaccountants.com if, after following these procedures, you are still experiencing QuickBooks issue 80029c4a. We’ll be happy to assist you. You do not need to hesitate to get in touch with our technical support team.

Frequently Asked Questions

Q 1: What does the QuickBooks Error Loading Type Library/DLL (80029c4a) code mean?

Q 2: Is it possible to lose data due to QuickBooks Error Code 80029c4a?

Q 3: What’s causing my QuickBooks to not load?

Q 4: How do I register the QuickBooks DLL files again?

Q 5: How does the QuickBooks Component Repair Tool operate, and what is it?

Adams Williams

Adams Williams is a seasoned accounting professional with over 4 years of experience in bookkeeping, financial reporting, and business accounting solutions. Specializing in QuickBooks software, Adams combines technical expertise with clear, accessible content writing to help businesses streamline their financial processes. His insightful guides and how-to articles are crafted to assist both beginners and seasoned users in navigating accounting software with confidence.

Phone

+1800-961-4963

Toll Free: +1800-961-4963 user