The error "cannot create soundtoys version root folder" typically occurs due to or an incorrect temporary folder path on your system . Users on Gearspace have noted that if your Windows Temp folder has been moved to a different drive, the installer may fail to create the necessary directories. Primary Fix: Reset System Temp Folder
: If you previously tried to move your Soundtoys data using symbolic links (hardlinks) to a secondary drive, the installer may fail as it attempts to write to a path it cannot resolve. Standard Installation Paths Ensure that your computer meets the system requirements
: Add your DAW ( Ableton , FL Studio, Cubase, etc.) to your antivirus's safe application list or "exclusions" . Ensure that your computer meets the system requirements
Press Cmd + Shift + G in Finder and go to /Library/Application Support/Soundtoys . Delete any remaining version folders. Ensure that your computer meets the system requirements
Manually delete the folder at C:\Users\Public\Documents\Soundtoys .
C:\Program Files\SoundtoysC:\ProgramData\Soundtoys (hidden folder)