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How to Resolve QuickBooks Error 15103

How to Resolve QuickBooks Error 15103

Navigating through QuickBooks can be smooth sailing until you hit a snag like Error 15103. This pesky error can disrupt your workflow and leave you scrambling for a solution. 

What is QuickBooks Error 15103?

QuickBooks Error 15103 is an error code that surfaces while you update your QuickBooks desktop or download a QuickBooks update. 

Common Causes of QuickBooks Error 15103

Understanding the roots of QuickBooks Error 15103 can give you a clearer path to resolution. Here are the most common culprits:

  1. Corrupted Windows Files: If your Windows operating system has corrupted files, it might hinder QuickBooks from accessing the updates it needs.
  2. Improper Configuration of Internet Explorer: QuickBooks relies on Internet Explorer to access the Internet. Incorrect settings can prevent QuickBooks from connecting to the update servers.
  3. Incomplete Installation or Corruption of QuickBooks Files: Sometimes, QuickBooks installations can go awry, or files may become corrupted due to system anomalies.
  4. Firewall or Antivirus Interference: Security programs are essential but can occasionally block QuickBooks from downloading necessary updates.

Troubleshooting Methods to Resolve QuickBooks Error 15103

Now, let’s roll up our sleeves and tackle the troubleshooting methods to help you resolve Error 15103. Follow these steps methodically for the best chance of success.

Method 1: Verify Your Internet Explorer Settings

QuickBooks uses Internet Explorer’s settings to connect to the internet. Ensuring these are correct is your first port of call:

  1. Open Internet Explorer.
  2. Navigate to Tools > Internet Options.
  3. Go to the Security tab and ensure the security level is set to Medium-High.
  4. Switch to the Connections tab:
  • If you use a dial-up node, ensure that it’s correctly configured.
  • Click on LAN Settings and ensure the automatically detect settings option is checked.

5.In the Advanced tab, restore advanced settings and ensure TLS 1.2 is checked under Settings.

Method 2: Utilize the QuickBooks Install Diagnostic Tool

QuickBooks Install Diagnostic Tool can fix a multitude of issues related to QuickBooks installation, including Error 15103:

  1. Download and Install the QuickBooks Tool Hub:
  • Close QuickBooks.
  • Download QuickBooks Tool Hub file. Could you save it to a place you can easily find?
  • Open the file you downloaded (QuickBooksToolHub.exe).
  • Follow the on-screen steps to install and agree to the terms and conditions.
  • Once the installation finishes, double-click the icon on your Windows desktop to open the tool hub.
  1. Run the QuickBooks Install Diagnostic Tool:
  • In the QuickBooks Tool Hub, select Installation Issues.
  • Click on the QuickBooks Install Diagnostic Tool. Depending on your system, it might take up to 20 minutes to run.
  • Once completed, restart your computer.

Method 3: Clean Install QuickBooks in Selective Startup Mode

Sometimes, a clean installation of QuickBooks is necessary to resolve stubborn issues:

  1. Prepare for a Clean Install:
  • Back up your QuickBooks data.
  • Note your QuickBooks product version and license info.
  1. Switch to Selective Startup:
  • Press Windows + R to open the Run command.
  • Type msconfig and hit Enter.
  • Select Selective Startup and Load system services in the General tab.
  • Click OK, then Restart.
  1. Uninstall and Reinstall QuickBooks:
  • Uninstall QuickBooks from the Control Panel.
  • Download your version of QuickBooks from the official site.
  • Install QuickBooks as per usual procedures.
  • Switch back to normal startup mode by undoing the changes in msconfig.

Method 4: Manually Download and Apply the Update

If automatic updates aren’t working, try updating manually:

  1. Download the Update from the QuickBooks Website.
  2. Close QuickBooks.
  3. Locate the downloaded file and double-click to install the update.
  4. Restart your computer and open QuickBooks to see if the error is resolved.


QuickBooks Error 15103 can be a roadblock, but you can easily overcome it with the right tools and techniques. By following the troubleshooting methods outlined above, you’ll be well on your way to restoring full functionality to your QuickBooks software. Always ensure your system meets the requirements for QuickBooks and that your internet settings are optimized for QuickBooks operations.

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