How to Troubleshoot and Fix QuickBooks error 1603?

There are numerous errors that users face while installing the QuickBooks Desktop application. One of them is QuickBooks error 1603. It arises when a user installs QuickBooks or opens it after the install. It comes up on the screen along with a message, “Error 1603. The update installer has encountered an internal error.” The user might also come upon this installation error with messages, “Unable to apply the patch” or “MSI returned 1603: Fatal error during installation.” This blog will brief you on reasons that trigger error 1603 in QuickBooks along with fixation steps, so read carefully until the end.

If you need direct technical assistance to resolve QuickBooks error 1603, reach out to the certified QuickBooks expert’s team by calling us on our helpline number +1 800-579-9430

Main causes of QuickBooks installation error 1603

  1. Partial download and installation of QuickBooks Desktop.
  2. Some issues with the Windows registry.
  3. Damage to some Microsoft components such as MSXML and C++.
  4. Windows on your device is outdated.

Read more :- QuickBooks error H202

Quick Ways to Resolve QuickBooks Desktop error 1603

Solution 1. Download QuickBooks Tool Hub and make the most of Install Diagnostic Tool

  1. Shut QuickBooks Desktop, open your browser to download the QuickBooks Tool Hub setup file of the latest version.
  2. The downloaded file gets saved to the Downloads. You can save it to your Windows desktop for easy access.
  3. Locate and double-click to open the QuickBooksToolHub.exe file you downloaded.
  4. Follow the prompt steps to install the tool hub and then select to mark the agree to the terms and conditions checkbox.
  5. From your desktop, double-click the QuickBooks Tool Hub icon, select Installation Issues, and click QuickBooks Install Diagnostic Tool.
  6. Wait till the tool repairs Microsoft components. It will take around 20 minutes to complete the process.
  7. Finally, restart your device.

Solution 2. Execute clean installation of QuickBooks program in selective startup

  1. Generate a backup file of your data to prevent loss manually.
  2. Jot down QuickBooks license number and product information.
  3. Switch your device to Selective startup mode. Here’s how:
  • Tap the Windows and R keys at once on your keyboard to open the Run prompt box, type msconfig and click OK.
  • From the General tab, choose Selective startup and Load system services.
  • Move to the Services tab, select to mark the Hide all Microsoft Services checkbox, and click the Disable all button.
  • Clear the Hide all Microsoft services checkbox and select the Windows Installer checkbox.
  • Assure the services checkbox is selected and click OK.
  • Click Restart when the System Configuration window appears.
  1. Completely uninstall QuickBooks from the device.
  2. Start your computer back in Normal startup:
  • Open the Run window once again by tapping the Windows and R keys on your keyboard.
  • Type msconfig in the Run box and tap the Enter key.
  • Go to the General tab, choose Normal startup, and click OK.
  • When the System Configuration window opens, select Restart.

The above troubleshooting solutions, when followed correctly, will definitely resolve QuickBooks error 1603. If the error doesn’t fix, contact the certified QuickBooks expert’s team by calling us on our toll-free number +1 800-579-9430.

Related article :- error 12029 QuickBooks

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