Error 4099: Windows Installer not installed properly
Article ID: SLN12223
Error 4099 occurs when installing .NET 2.0:
Windows Installer is not installed properly on computer.
There is a problem with the Windows Installer on your computer.
To resolve this issue, follow these steps:
- Cancel TurboTax installation (if necessary).
- Click here to save the Window Installer download to your desktop.
- Double-click the download to install it on your computer.
- Close open windows and programs.
- Install TurboTax.