Ansys Lumerical product preference files

Ansys Lumerical product configuration is stored in a series of "preference" or configuration ".ini" files. These ".ini" files are stored in a hidden folder in your "home" directory. 

• License.ini: Contains the license server information.
• Launcher.ini: Stores Launcher-specific (GUI) settings.
• Shared.ini: Shared settings for all solvers. Including recently opened files, scripts, and application examples. 
• Login.ini: The login web token information when logging into the product to download Application Gallery (Apps) examples from within the application. 
• <productname>.ini: Product-specific settings like display, solver, and resource configuration.
  Each Lumerical product will have its own preference file used by all versions: FDTD Solutions.ini, MODE Solutions.ini, Lumerical DEVICE.ini, INTERCONNECT.ini

Preference files location

The Lumerical configuration or preference (.ini) files can be found: (default install path shown)

Windows

• Local or user-specific: 

C:\Users\<UserName>\AppData\Roaming\Lumerical\<Product>.ini

• System-wide:

C:\Program Files\Lumerical\<version>\Lumerical\<Product>.ini

Linux

• Local or user-specific:

~/.config/Lumerical/<Product>.ini

• System-wide:

/opt/lumerical/<version>/Lumerical/<Product>.ini

macOS (deprecated)

• Local or user-specific: 

/Users/<UserName>/.config/Lumerical/<Product>.ini

(no system-wide settings on macOS) 

Removing your local preference files

• Removing your local (current user) preference.ini files resets the Lumerical product settings and a new preference.ini file is created with the default settings.
• The process shown below does not remove the license configuration, "License.ini" file. 

Windows

Using the Windows file explorer:

The preference files are stored in the User's hidden "AppData" folder. The process shown below will let you go to the folder using the "File Explorer". 

• Open Windows "File Explorer"
• Enter "%AppData%\Lumerical\" in the address bar.
• Delete the ".ini" files except for the license configuration file, "License.ini". 

Using the command prompt

• Open a Windows command prompt.
• Run the following,

cd %AppData%\Lumerical
ren License.ini License.orig
del *.ini
ren License.orig License.ini

Linux:

• Open Terminal,
• Run the following, 

cd $HOME/.config/Lumerical/
mv License.ini License.orig 
rm *.ini
mv License.orig License.ini