QuickBooks Error 15103 halts the update process of QuickBooks Desktop. We'll talk about the different ways to fix QuickBooks Error 15103 as well as the associated information related to it. So make sure you read this whole blog all the way to the end.

Potential Causes behind QuickBooks Error 15103 

• This error can occur if Internet Explorer is wrongly set.
• An incomplete QuickBooks installation can also provoke this error.
• Windows OS is not set up to the latest update.
• Issues within the Windows registry can also cause this QuickBooks error.

Method to Fix QuickBooks Error 15103 

Method 1: Reset QuickBooks updates

• Log out of the QuickBooks Desktop initially.
• Open up your computer and go to "Drive:/Program/Data/Intuit/QuickBooksXX/Components."
• Now, run your QuickBooks Desktop program.
• Go to the Help tab and pick the option to Update QuickBooks Desktop.
• From the top menu, choose the option to Reset Update, and then hit on Get Updates.
• Finally, click on the Update Now button to start the process of updating QuickBooks.

Method 2: Launch Reboot.bat 

• Make an exit from QuickBooks Desktop.
• Then, right-click on the Desktop icon and choose Properties.
• After that, click on the Open File Location option.
• In the QuickBooks folder, you should be able to find reboot.bat. If the file is hidden, type reboot into the Search box after enabling the option to view hidden files and folders.
• Open the file by double-clicking on it.
• For the changes to take place, you need to restart your computer.
• If you are asked to install an update, click on the Update Now button.
• Then, open QuickBooks Desktop and choose the Run as administrator option.
• Follow the steps in the next method if the error is still prevalent.

Method 3: Updating O/S

• Click on the Start button.
• After that, click on Settings.
• Now, hit on Update and Security in Settings.
• Next, go to Windows Update and click on the Check for updates option.
• Soon after, click on the option to Download and install the updates.
• Restart your computer.
• Updating the O/S should fix QuickBooks Error 15103.

Method 4: Setting up Digital Signature Certificate

• Open the QuickBooks folder by navigating to Drive:/Program Files (x86)/Intuit.
• Then, right-click on QBW32.exe and choose Properties.
• Choose Intuit from the list of digital signatures under "Digital Signatures."
• After that, click on Detail.
• After choosing View Certificate, click on the Install Certificate option.
• Click on Next, followed by hitting on Finish.
• Once the certificate has been imported successfully, restart your computer and try to download the update again.
• Check to see if this method can fix QuickBooks Error 15103. 

Method 5: Fix the error using QuickBooks File Doctor

• Download QuickBooks Tool Hub from the official Intuit website.
• Now, hit on the CTRL+J keys to head to the download folder.
• Double-click the QuickBooksToolsHub.exe.
• Click Next to start installing the tool, and click Yes again to agree to the license terms.
• To start the installation process, click Next and then Install.
• Click the Finish button when the installation is done.
• Open the QuickBooks Tool Hub now.
• On the Company File Issues tab, choose the QuickBooks File Doctor and run it.
• Click on Browse, then pick your Company file.
• Then, choose the option to Check your files and network.
• Hit on Continue.
• After entering your QuickBooks Admin password, click on Next.
• Wait for the scan to conclude. Once it's done, restart QuickBooks to check if this method could fix QuickBooks Error 15103.

Method 6: Clean install QuickBooks

• Press the Win and R keys simultaneously to open the Run Window.
• Then, type MSCONFIG into the Run box, followed by hitting the Enter key.
• Choose "Selective startup" under the "General" tab.
• Now, click on OK.
• When prompted, choose Restart.
• After uninstalling QuickBooks Desktop, install it again.
• Before starting the installation process, ensure you have your license and product keys on hand.

Final Words 

It is time to wind up this blog. By now, you should be able to fix QuickBooks Error 15103, if not, just call us at our dedicated helpline at +1-800-615-2347 to get round-the-clock assistance from our QuickBooks executives.