Many troubleshooting issues can be resolved by deleting or resetting the Isadora Preferences. 

You can quickly reset the Isadora Preferences in Isadora 3 and later by choosing Isadora > Reset Preferences (macOS) or File > Reset Preferences (Windows) from the menu. A confirmation window will appear. Click OK to reset the Isadora preferences, then relaunch Isadora.

On previous versions of Isadora, follow these steps:


  1. In the Finder, choose Go > Go to Folder…
  2. Enter this text: ~/Library/Preferences
  3. Find any files that start with the name “Isadora Prefs…” and move them to the trash
  4. Empty the Trash


  1. Download the file
  2. Unzip the file
  3. If you are logged in as the administrator of the computer, then double-click the resulting batch file “Delete Isadora Preferences.bat”
  4. If you are not logged in as the administrator, right-click the “Delete Isadora Preferences.bat” file and choose “Run as Administrator…”
  5. When the script completes, the preferences are deleted.

Windows Option 2:

  1. If you are logged in as the administrator of the computer.
  2. Open C:\Users\YourUserName\AppData\Roaming\TroikaTronix (where YourUserName is your Windows username)
  3. Delete the *.izp file which name corresponds to the Isadora version you are running. For example, 'Isadora Prefs 2.6.1.izp' is used by Isadora 2.6.1