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

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

In order to resolve this issue, please trash the Undo.cfg file and the Preferences.cfg file. You will find these files in the following paths:

Windows Vista, Windows 7, Windows 8, Windows 10

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

Windows XP

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

Mac OS X

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

Note: These folders are usually hidden by default. Here's how to access hidden folders on Windows and Mac OSX.