Overview
The following error is encountered when the Bayesian Analysis Wizard is being installed on a Microsoft Windows 8 machine:
Error 1720. There is a problem with this Windows installer package.
Environment
- GFI MailEssentials
- Microsoft Windows 8
Root Cause
To successfully install the Bayesian Analysis Wizard on a Microsoft Windows 8 machine, .NET Framework 3.5 must be installed first.
Resolution
Follow the steps below to install .NET Framework 3.5 on a Microsoft Windows 8 machine:
- Open the Control Panel, click Programs and then click Turn Windows features on or off.
- In the Windows Features dialog, enable the .NET Framework 3.5 feature and click OK.
- NOTE: The installation of .NET Framework 3.5 might ask you to connect to Microsoft Windows updates to download the required files.
- When the installation of .NET Framework 3.5 is complete, click the Close button.