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Troubleshooting problems with Windows Installer and the Microsoft .NET Framework

The Microsoft .NET Framework helps software developers create applications quickly, efficiently, and with less code clutter. TurboTax for Windows relies heavily on the .NET Framework, so it's crucial that your .NET system files are up-to-date and functional.

TurboTax for Windows 2016, 2017, and 2018 require .NET Framework 4.5.2.

  • Windows 10 comes with .NET Framework 4.6.
  • Windows 8 comes with .NET 4.5, with automatic updates.

If you encounter errors or other problems with .NET, download and run Microsoft's .NET Framework Repair Tool.

If that doesn't resolve your issue, run the System File Checker and then open Control Panel and choose Programs and Files. Open .NET Framework 4 and select Repair.

If the issue persists, download and install .NET Framework 4 from Microsoft's site.

If you're not experiencing a specific error, here's some general help articles that might be useful.

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