Error message: "Live cannot access the undo history file and is switching to a memory based undo" when opening Live

  • Live Versions: 4 - 9
  • Operating System: ALL

Please try trashing the Undo.cfg file and the Preferences.cfg file. You will find these files in the following paths:

Windows XP

\Documents and Settings\[username]\Application Data\Ableton\Live x.x.x\Preferences\

Windows Vista, Windows 7, Windows 8

\Users\[username]\AppData\Roaming\Ableton\Live x.x.x\Preferences\

Mac OS X

/Users/[username]/Library/Preferences/Ableton/Live x.x.x/

Depending on your operating system, these folders may be hidden.  Please refer to the following knowledge base article for further information on how to access hidden folders on Windows and Mac OSX.