QuickBooks Error 15103: Easy Steps to Fix the Problem Immediately 

If you are seeing Error 15103 in QuickBooks, do not worry. This problem occurs when the software is not updated properly or the internet is weak. Then, update QuickBooks. Also check the security settings of your computer (such as antivirus or firewall), because sometimes they do not allow the software to update.

This tool automatically fixes many problems. By following these simple steps, you can quickly fix Error 15103 and resume your accounting work without interruption. If the problem still persists, talk to the QuickBooks support team.

QuickBooks Error 15103 Overview

If you are seeing "QuickBooks Error 15103" while updating QuickBooks, don't panic. This problem occurs when there is a technical problem while updating. The main reason for this can be a corrupted update file or an internet problem. When this error occurs, you are unable to use the new payroll or other new features of QuickBooks.

When this error occurs, a message appears - "The updated program has been corrupted or cannot be opened." Due to this, your business work can stop and accounting related work is not completed on time.

Some of the main reasons for this error can be:

QuickBooks is not installed correctly.

Slow or frequent internet connection.

Lack of digital signature certificate.

Firewall or antivirus prevents QuickBooks from updating.

It is important to fix this problem so that you can take advantage of new updates and improved features. By following the steps correctly, you can fix this problem yourself and get your QuickBooks working properly again.

If you are having trouble fixing it yourself, then there is no need to worry. We will tell you easy and complete steps to correct this error, so that your accounting work will continue without any interruption.

Reasons for QuickBooks Error 15103

If you are seeing Error 15103 while running QuickBooks, then there can be many reasons behind it. Let's understand in simple language:

Internet connection problem

If the internet on your computer is not working properly or is getting disconnected in between, then QuickBooks cannot update, and this error can occur.

Wrong browser settings

If the settings of Microsoft Internet Explorer or Edge browser in your computer are wrong, then also Error 15103 can come.

QuickBooks is not installed correctly.

If the QuickBooks software is not fully installed or some of its files are corrupted, then this problem can arise while updating.

The Windows registry is corrupted.

If the important files of the Windows system are corrupted, then this can also cause this error in QuickBooks.

The digital signature does not match properly

When QuickBooks is unable to check the digital signature of a file, Error 15103 starts appearing.

Any other software (such as antivirus) is interfering

If any antivirus or third-party software is running on your system, it can prevent QuickBooks updates.

The download drive is not set up correctly.

If QuickBooks' download drive is not connected to the computer correctly, then this error can also come.

The file copy service is turned off.

If QuickBooks' file copy service is turned off or not working properly, the update may stop and an error may appear.

Problem with antivirus such as Spy Sweeper

If you have Webroot Spy Sweeper or a similar program on your computer, it can interfere with QuickBooks updates.

The old version of Windows

If your computer has an old version of Windows and it is not compatible with QuickBooks, then this error can occur.

The computer date and time are incorrect

If your computer does not have the correct date and time, then this can also cause an error in QuickBooks.

Windows Firewall is blocking the update

If the Windows firewall settings are such that QuickBooks is not allowing it to connect to the Internet, then the update will not happen and Error 15103 will appear.

How to Troubleshoot QuickBooks Error 15103?

Solution 1: Edit Internet Explorer Settings

• First, open Internet Explorer.
  
  

• Click on the Gear icon and choose Internet Options.
  
  

• Go to the Security tab > select Trusted Sites > click on Sites.
  
  

• Add these websites:
  
  

  • For US QuickBooks: *.quickbooks.com and *.intuit.com
    
    

  • For Canadian QuickBooks: *.quickbooks.ca and *.intuit.ca
    
    

• After adding them, click on Close.
  
  

• Then, click Apply and OK.
  
  

• Finally, check if the error is fixed.

Solution 2: Configure Firewall and Antivirus Defender

• Open the Windows Start Menu.
  
  

• Type and open QuickBooks Database Server Manager.
  
  

• Go to the Port Monitor tab and note down the Port Number.
  
  

• You will need this port number to set firewall exceptions.
  
  

• Now, create a new rule in the firewall:
  
  

  • Allow connections.
    
    

  • Make sure all profiles are selected.
    
    

  • Give a name like "QBPorts(Year)".
    
    

• Finish the setup and check if the error is gone.
  
  

Solution 3: Verify Internet Connection and QuickBooks Settings

• Make sure QuickBooks can use the internet for incoming and outgoing connections.
  
  

• If the firewall is not set properly, errors like 15103 can happen while updating.
  
  

• Adjust firewall and antivirus settings if needed.
  
  

Solution 4: Download the Update in Safe Mode

• Start your computer in Safe Mode.
  
  

• Download the QuickBooks update.
  
  

• Restart the computer in Normal Mode.
  
  

• Try downloading the update again and check if the problem is solved.
  
  

Solution 5: Switch to Normal Startup Mode

• Press Windows + R to open the Run window.
  
  

• Type MSCONFIG and hit OK.
  
  

• Select Normal Startup mode.
  
  

• Click Apply, then OK.
  
  

• Restart your computer.
  
  

Solution 6: Run Quick Fix My Program

• Download and install the QuickBooks Tool Hub from the official website.
  
  

• Open it and go to the Program Problems section.
  
  

• Click on Quick Fix My Program.
  
  

• Wait for it to complete, then reopen QuickBooks.
  
  

Solution 7: Start the Reboot.bat File

• Close QuickBooks.
  
  

• Right-click the QuickBooks icon and go to Properties.
  
  

• Click Open File Location.
  
  

• Search for reboot.bat.
  
  

• Right-click it, select Run as Administrator, and click Yes.
  
  

• Restart your computer and open QuickBooks again.
  
  

• Try updating QuickBooks to see if the error is gone.
  
  

Solution 8: Rename the downloadqbxx Folder

• Open the folder where QuickBooks update files are stored.
  
  

• Find the folder named downloadqbxx (xx means your QuickBooks version).
  
  

• Right-click the folder and rename it. Add .OLD at the end of the folder name.
  
  

• Now, try to update QuickBooks again.
  
  

Solution 9: Clean Install QuickBooks

• Uninstall QuickBooks Desktop.
  
  

• Download and run the QuickBooks Clean Install Tool.
  
  

• Manually rename the QuickBooks installation folders.
  
  

• Reinstall QuickBooks Desktop.
  
  

• Check if the QuickBooks Error 15103 is fixed.
  
  

Solution 10: Install Digital Signature Certificate

• Search for QBW32.exe on your computer (usually in C:\Program Files\Intuit\QuickBooks).
  
  

• If you don't find it, click More Results and then Computer.
  
  

• Once you find it, right-click and select Properties.
  
  

• Go to the Digital Signatures tab and select Intuit Inc..
  
  

• Click on Details, then View Certificate.
  
  

• Click Install Certificate and keep clicking Next until you see Finish.
  
  

• After installing the certificate, restart your computer.
  
  

• Open QuickBooks and download the update again.

Conclusion

Fixing QuickBooks Error 15103 is no longer difficult. You can easily fix this problem by following the methods mentioned above. If you are still facing problems, don't worry. Our expert team is ready to help you.  +1(855)-738-0359, we will give you full help and also tell you easy ways to avoid such problems in the future.