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TurboTax Error 1603 (5 Simple Steps To Troubleshoot It)

TurboTax Error 1603 is a fatal error that usually occurs when you try to update TurboTax on your PC. The error code freezes your system and forces your task manager to close the software. It is one of the best tax preparation software in the US. It is equipped with advanced accounting features & tools that help you a lot when preparing or filing taxes.


Sometimes you may encounter the TurboTax error code 1603. Troubleshooting methods are; restarting your PC, Reinstalling the TurboTax app, repairing TurboTax, Disabling the Firewall or antivirus settings, etc. Here is how to fix the TurboTax Installer Error 1603 in Windows operating system.

You may encounter the TurboTax Update Error 1603 because of various reasons mentioned below-

  • Malfunction activity in your system
  • Delay in commands due to your antivirus
  • You are not logged in as an administrator
  • The TurboTax subscription plan is expired
  • Damaged Windows Registry Key permissions
  • Corrupted Microsoft.NET Framework package
  • Corrupted Windows files
  • Restricted File Permission.

These are the leading reasons behind the TurboTax update error 1603.

How To Fix TurboTax Error 1603- Reinstall TurboTax

Here are the steps to reinstall the TurboTax program-

  • Firstly, close the TurboTax application on your PC
  • Navigate to the Settings menu
  • Click on the Apps tab
  • Scroll down and select the TurboTax app from the list
  • Then, click the Uninstall button to proceed
  • Wait for a few minutes and follow the prompts
  • Uninstall the TurboTax app and restart your device
  • After that, disable your firewall setting
  • Navigate to the File Directory and open the TurboTax folder
  • Then, rename your directory to recognize
  • Launch the browser and login into your TurboTax account
  • Download the TurboTax installation file
  • Right-click on the installation file and run as administrator
  • Finally, follow the prompts and install it.

Uninstalling and reinstalling the TurboTax program is an effective method to fix the TurboTax fatal error 1603.

Read More:- TurboTax Error 190 | 7 Simple Methods To Troubleshoot It

How To Fix TurboTax Error 1603- Manually Download The Update

You can also upgrade the TurboTax software to the latest version by installing the latest updates manually. Follow the prompts to continue-

  • Firstly, close TurboTax and other background applications
  • Launch your web browser
  • Then, visit TurboTax official site
  • Download the latest TurboTax software
  • Then, double-click on the update file option
  • Follow the on-screen steps to install the update manually

How To Fix TurboTax Error 1603- Close All Conflicting Programs

Closing all the conflicting programs is an alternate method to fix the TurboTax Fatal Error Code. Pursue the steps mentioned below-


  • Firstly, press the Ctrl + Alt + Delete keys to launch the advanced tool window
  • Then, click Task Manager from the display
  • Select all the conflicting programs running on your PC
  • Tap End Process to close the selected programs
  • Then, access the TurboTax program
  • Update the conflicting software.

How To Fix TurboTax Error 1603- Disable Third-Party Security Software

Security software like Antivirus or Antimalware may recognize the TurboTax program as a threat and block the services without notifying. Follow the prompts to disable the third-party security software-

  • Firstly, close the Antivirus or Antimalware program
  • Then, right-click on the program icon
  • Select the Disable option from the menu
  • Choose the time slot option to enable the program automatically
  • Then, pick the preferred option from the window
  • Follow on-screen prompts and Disable the Security Software programs.

How To Fix TurboTax Error 1603- Delete or Clean System Files

TurboTax Fatal Error 1603 may occur due to the space shortage. The Disk Cleanup feature provides the best solution. Follow these steps-


  • Firstly, press the Windows + Q to launch the Search window
  • Type cleanmgr and hit the Enter key on your device
  • Launch the Driver Selection window and click OK
  • Click Clean up system files to proceed
  • After that, select the OK option again to confirm
  • Choose the file types to delete from PC
  • Tick all the checkboxes under the Files to Delete section
  • Then, tap OK and click Delete Files to continue
  • Finally, reboot your PC after ending the process.

How To Fix TurboTax Error 1603- Reinstall Visual C++ Package

Corrupted or damaged Microsoft Visual C++ is also one of the leading reasons behind the TurboTax fatal error 1603. Uninstall the existing component and reinstall the package to fix the TurboTax update error 1603.

  • Firstly, press the Windows + R key to launch the Run window
  • Then, type appwiz.cpl in the text field
  • Click OK to proceed or press the Enter key
  • Go to the Programs and Features window
  • Type Microsoft Visual and locate the programs
  • Select Microsoft Visual C++ package from the list
  • Tap the Uninstall option from the top right corner
  • Follow the prompts and finalize the uninstallation process
  • Then, restart your PC to remove unwanted files and folders
  • Launch any updated browser and visit Microsoft official site
  • After that, download the latest version of the Microsoft Visual C++ package
  • Finally, install the file and relaunch the TurboTax program.

How To Fix TurboTax Error 1603- Clean Boot Windows

Follow these steps to clean boot your Windows OS-

  • Firstly, press the Windows key and type MSConfig in the search field
  • Hit the Enter key and tap the Radio icon
  • Go to the Selective startup option
  • Untick the checkbox Load startup items
  • Then, navigate to the Services tab
  • Select the Hide All Microsoft Services option and click Disable All
  • Choose the Startup tab and click Open Task Manager to continue
  • Then, right-click on the program and choose the Disable option
  • Disable all the startup programs and close the Task Manager setting
  • Navigate to the System Configuration setting
  • Click Apply to save the setting and click OK to proceed
  • Finally, restart your PC and finalize the clean boot process.

How To Fix TurboTax Error 1603- Update TurboTax Program

You can fix the TurboTax installer error 1603 by updating the TurboTax program on Windows operating system.

Fix TurboTax Installer Error On Windows 7

Go through the instructions to fix the TurboTax Update error 1603 on Windows 7 operating system-

  • Firstly, press the Windows key on your keyboard
  • Select the Control Panel option from the menu
  • Tap on the Programs and Features tab
  • Then, go to the conflicting program and select them
  • Right-click on the programs and choose the Update option
  • Then, follow the prompts on your screen
  • Finally, finalize the Update process.

Fix TurboTax Installer Error On Windows 8

Follow the instructions mentioned here to fix the TurboTax Update error 1603 on Windows 8 operating system-

  • Firstly, open the Start menu setting
  • Scroll down and select the More option
  • Then, click on the Control Panel setting
  • Choose the Programs and Features option from the menu
  • Select the program behind the error 1603
  • Finally, choose Update and follow the on-screen prompts.

Fix TurboTax Installer Error On Windows 10

Here are the steps to fix the TurboTax Update error 1603 on Windows 10 operating system-

  • Firstly, launch the Start menu
  • Then, enter Control Panel in the Search tab
  • Select Program & Features to proceed
  • After that, scroll down and pick the conflicting program
  • Right-click on the name and tap Update
  • Finally, follow the prompts that appeared on the screen to update the program.


You can quickly fix the TurboTax Error 1603 by uninstalling and reinstalling the TurboTax software. But, ensure that you are logged in as an administrator; otherwise, you will not be able to resolve the issue. If you are still facing the TurboTax fatal error 1603, consult Wire-it Solutions expert’s service to solve the issue immediately. Leave your query below in the comment section and let us know which method fixed your problem.

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