Error 5100 when installing TurboTax 2009 on a Windows Vista or Windows 7 system
Article ID: SLN12476
This error normally occurs on Windows Vista and Windows 7 systems that have the .NET Framework option turned off.
To resolve this issue:
- Click on Start > Control Panel.
- Click on Programs and select Turn Windows features on or off, located under Programs and Features.
- In the Turn Windows features on or off window and verify the Microsoft .NET Framework 3.5.1 checkbox is selected. If it is not, select it.
- Click the OK button.
- Restart the computer.
- Install TurboTax 2009.