Error 15203 in QuickBooks is one of a wide range of hexadecimal partition errors. In this article, we'll discuss about the troubleshooting methods to fix QuickBooks error 15203 and the various causes that may embolden it. So, keep reading.

Causes leading to QuickBooks Error 15203

•        Deleting a local partition drive on the computer.

•        A partial installation of the QuickBooks Desktop program.

•        Insufficient RAM.

·         Certain hard disk-related technical problem.

How can I fix QuickBooks Error 15203?

Fix 1: Run Reboot.bat

•        Right-click the QuickBooks icon and click on Properties.

•        Click on "Open File Location".

•        The QuickBooks folder will appear.

•        Search for "Reboot" in this folder and then run the "Reboot.bat" file as an admin.

•        Run QuickBooks again and perform the action that led to QuickBooks Error 15203. If it persists, advance to the next fix.

Fix 2: Use the safe mode

•        Restart the computer.

•        When the black reboot screen appears, keep tapping the F8 key to open the Advanced startup Options.

•        Choose Safe Mode with Networking and press the Enter key.

•        When the Desktop displays, run QuickBooks.

•        Visit the Help tab and try to update QuickBooks Desktop.