QuickBooks Error OLSU 1024: Why It Happens and How to Resolve It

Last Updated on January 5, 2026

Encountering the QuickBooks error OLSU 1024 can feel like hitting a brick wall right when you’re trying to manage payroll, sync transactions, or close out a deadline-heavy workday. It feels so sudden: one minute, everything’s smooth; the next, an error message flashes on the screen, stating:

This issue usually occurs when QB can’t communicate with Intuit’s banking servers or when the Online Banking Setup Utility (OLSU) fails. This can happen due to outdated components, expired certificates, or a faulty installation. In most cases, users encounter this error after a Windows update, a QB patch, or a change made by the connected bank.

To help you overcome this issue, we have created a guide that breaks down the potential reasons. Moreover, you will learn tested methods to resolve it, including updating QuickBooks, repairing installation files, or editing the fidir.txt file. Let’s quickly get your accounting software back on track.

Resolving the error OLSU 1024 can be tricky and hectic. So, if you are facing any difficulty, seek professional help. For that, call us at +1(855)-510-6487 to get helpful assistance from a certified QB expert.

What Triggers OLSU 1024? Key Reasons You Should Know

The primary reason this error appears on your screen is an issue with your Financial Institution Directory, which registers your bank information. The problem with your application is also one of the reasons for the QuickBooks update error OLSU 1024. The complete list of reasons for the QuickBooks error that occurred while updating the branding files is as follows:

• The Financial Institution Directory (FIDIR) is outdated and unable to store your banking information
• Banking information is stored in the wrong location
• An outdated QuickBooks application
• Your QuickBooks application is damaged
• Your fidir.txt settings are wrong

Understanding the reasons behind this issue is just the first step; now, let’s walk through the next section to discuss the troubleshooting process to fix it.

5 Step-by-Step Fixes for QuickBooks Error OLSU 1024

Ready to fix it? Follow the tested methods below to get rid of the QuickBooks error OLSU 1024 and restore normal QB application performance.

Method 1: Update your QuickBooks Application

An outdated QuickBooks Desktop application can cause QuickBooks Desktop error OLSU 1024. To fix it, update the QB to the latest version. Follow these steps in order to do so:

• Close your company file, and then the QuickBooks application
• Tap on the Windows Start button and search for QuickBooks
• Right-click on the QuickBooks icon and select Run as Administrator

• Now, in the No Company Open screen, go to the Help tab and click on Update QuickBooks Desktop

• Go to the Options tab, choose Mark All, and tap on Save
• Go to the Update Now tab and check the Reset Update box
• Click Get Updates, and once the download is complete

• Now, rerun your application and tap on Install Now when the message appears

After updating the QB application, check whether the issue is resolved. If error still persists, move to the next method.

Method 2: Update the Financial Institution Directory

The Financial Institution directory plays a major role in storing your banking information, and damage to it can cause error OLSU-1024 in QuickBooks. You can simply fix it by updating it; follow these steps in order to do so:-

• Follow the path C:\ProgramData\Intuit\QuickBooks 20XX\Components\OLB\branding\filist
• Find a file named fidir.txt and save its name to fidir.old
• Now, to download the latest Financial Institution Directory, visit the link that represents your QuickBooks Desktop version. And click on Save As/Save Target As
  • For US: 2020, 2019, 2018, 2017
  • For Canada: 2020, 2019, 2018, 2017
• The “Save As” window will appear on your screen. Choose Desktop as the file location and tap on Save
• Close the window once the download process is done
• Copy the downloaded fidir.txt file to the correct folder:
  • Right-click on the fidir.txt file that you saved on your desktop and select Copy
  • Now press Windows + E on your keyboard, and the Computer window will appear

• Follow the path: C:\ProgramData\Intuit\QuickBooks 20XX\Components\OLB\branding\filist in order to open the filist folder
• Right-click inside the folder and then tap on Paste. The file you copied from the desktop shall appear in your folder
• Now, open your QBD application

Check again whether the QB is running normally. If you are still facing the same issue, implement the next method.

Note: QuickBooks Error Code 102 occurs when the browser cannot connect to the bank’s website, preventing online banking updates and transactions from syncing properly with QuickBooks.

Method 3: Repair QuickBooks Desktop Application

QuickBooks files and applications are prone to damage, and that can be one reason why the QuickBooks error message code OLSU 1024 appears on your screen. These are the steps you need to follow in order to repair it:-

• Press Windows + E on your keyboard. (Click on the Computer tab for Windows 8)
• Click on Uninstall or Change a program
• Tap on QuickBooks and select Uninstall/Change
• The QuickBooks installation window will appear. Follow these steps for your operating system
• Click on Next and choose Repair
• Click on Next, tap on Repair, and finally click on Finish

Here, you need to reopen the QB to check the error status. If it still persists, follow the next method.

Method 4: Edit the Fidir.txt Preferences

You need to make changes in your fidir.txt preferences in order to fix QuickBooks error OLSU 1024. These are the steps you need to follow:-

• Go to C:\ProgramData\Intuit\QuickBooks 20XX\Components\OLB\branding\filist and find the fidir.txt file
• Right-click on the file and choose Properties
• Tick the read-only box
• Click on OK

After editing the fidir.txt, if you are still facing the same issue, you must clean install the QB software with the help of the next method.

Method 5: Clean Install the QuickBooks Desktop

Even after trying each method, if the issue continues, you must perform a clean installation of QuickBooks Desktop to resolve the error OLSU-1024

Once you have implemented the above steps, check whether the issue is resolved. We hope that carrying out these methods will help you overcome this error.

A Quick View on QuickBooks Error OLSU 1024

Here’s a quick view table to help you get a clear and concise picture of this blog. It highlights the potential issues and fixes in one place for easy understanding. 

Conclusion

This was all about the QuickBooks error OLSU 1024, which can be frustrating but is easy to resolve with the right methods. Additionally, in this blog, we have outlined the most likely causes of this issue to understand it better. If you still face issues or want a faster resolution, you must contact an expert by calling at +1(855)-510-6487 to get professional assistance.

Frequently Asked Questions (FAQs)

Kate Churchill

Kate is a certified public accountant (CPA) with expertise in various accounting software. She is technically inclined and finds passion in helping businesses and self-employed people carry out bookkeeping, payroll, and taxation without worrying about errors. Every once in a while, Kate loves to travel to far-off places and relax in the lap of nature.