How to fix TurboTax error 1603?

Alton Alexander
By Alton AlexanderUpdated on June 3rd, 2022

Turbotax error 1603 is a common error code that can occur when trying to install or update the Turbotax software. There are a few reasons why this error might occur, including:

-The Windows Installer Service is not running

-There is an issue with the Turbotax installation files

-There is a conflict with another program on your computer

If you are seeing this error, it is recommended that you first try restarting your computer and then try to install or update Turbotax again. If that does not work, you can try manually downloading and installing the Turbotax software from the TurboTax website.

You are here because you have a question about:

  • turbotax error code 1603
  • turbotax error 1603

1. Update your turbotax software to the latest version

1.Navigate to the "Software" tab on your account page. 2.Click on "Update Now" to download and install the latest update. 3.Click on the "Update" button to install the update. 4.Click on the "Finish" button to complete the update process. 5.Click on the "Quit" button to exit the turbotax software. 6.Restart your computer if prompted to do so. 7.If the update does not fix the turbotax error 1603, repeat the steps listed above.

2. If you are using a Windows computer, run the Microsoft Fixit tool for Installer Errors

  1. Open the Microsoft Fixit tool by clicking on the Start menu and clicking on "Fixit."
  2. Click on "Installer Errors."
  3. Click on "Turbotax Error 1603."
  4. Click on "Next."
  5. Click on "Fix problem."
  6. Click on "Finish."

3. Temporarily disable your anti-virus software and try installing turbotax again

  1. Open your anti-virus software and click on the "Troubleshooting" tab.
  2. Select "Disable anti-virus software" and click on the "Disable" button.
  3. Restart your computer.
  4. Try installing turbotax again. If the error still persists, please contact our support team.

4. Delete any temporary files that may be causing the issue

  1. Open your computer’s “Windows Explorer” folder.
  2. In Windows Explorer, search for “TEMP” and delete any files that may be causing the turbotax error 1603.
  3. Restart your computer.
  4. If the turbotax error 1603 still persists, please contact your tax professional for further assistance.

If the answers above didn't work then you should also try:

  1. Run the turbotax installer as an administrator.
  2. Repair your Microsoft .NET Framework installation.
  3. If you are still having issues, contact turbotax customer support.