Install and Upgrade Considerations for erwin Data Modeler

Consider the following factors before you install erwin Data Modeler 12.5 or upgrade from an earlier version.

Install Considerations

Before you install erwin Data Modeler on your computer, consider the following factors:

Enable .NET Framework

The Microsoft .NET Framework 4.0 is a prerequisite for erwin Data Modeler, Mart Portal, and Navigator editions. For Windows 10 and Windows Server 2012 operating system .NET Framework is installed by default but sometimes may not enabled. You must manually enable the .NET Framework before you install erwin Data Modeler for the following operating systems.

Microsoft Windows 10 and 11
Microsoft Windows Server 2012 R2, 2016, 2019, and 2022

You cannot install erwin Data Modeler when .NET Framework is disabled.

Follow these steps:

Click Windows Start icon.
Do one of the following:
- For Windows 10 and 11:
  Type optionalfeatures.exe in the Search bar and press Enter.
- For Windows Server 2012, 2016, 2019, and 2022:
  Click Control Panel, Programs and Features, and Turn Windows features on or off.
The Windows Features window appears.
Select Microsoft .NET Framework 3.5 and click OK.
The Microsoft .NET Framework is enabled.
Restart the computer to configure the changes take effect.

You can now install erwin edition of your choice.

Navigator and Data Modeler Compatibility

If you want to install Navigator and Data Modeler editions on a computer, we recommend you to select the Navigator edition features from the features selection list of Data Modeler installer.

Installation Path

When you uninstall r9.8 version of erwin products manually, sometimes the installation folders are not removed from the installation directory. You must manually remove the folders from the installation directory.

Upgrade Considerations

You can upgrade to erwin Data Modeler 12.5 edition from an earlier version. During the upgrade process for a 64-bit version, you may encounter the following situations:

If you want to upgrade erwin Data Modeler from an earlier 9.x version to 12.5, we recommend you to first uninstall the earlier version of erwin Data Modeler manually and then install the latest version.

erwin Model Icons

When you install or upgrade to erwin Data Modeler 12.5, sometimes the erwin Model icons may appear differently. After you open a model for the first time, all the Model icon file associations are restored and the Model icons appear normally.

Start Menu Cleanup

When you upgrade to erwin Data Modeler 12.5 from any earlier release of r9 series, erwin-related shortcuts and folders may remain in the Start menu. You may manually delete the folders and shortcuts of the delete versions from the Start Menu.