If the error persists, corrupted old folder metadata (sometimes showing dates as old as 1970) can block new folder creation. Soundtoys 5 via your system's uninstaller.
/Library/Application Support/Soundtoys and /Users/Shared/Soundtoys cannot create soundtoys version root folder at soundtoys 5
Moving your system's "Temp" or "Documents" folders to a different drive can confuse the installer's hardlink logic. Step-by-Step Solutions 1. Fix Directory Permissions and Security Settings If the error persists, corrupted old folder metadata
The software lacks "Write" access to the required directory. Step-by-Step Solutions 1
Go to /Users/Shared/Soundtoys/ . Right-click the folder, select Get Info , and under "Sharing & Permissions," set all users to "Read & Write".
Navigate to C:\Users\Public\Public Documents\ . Right-click the Soundtoys folder (if it exists), select Properties , and ensure "Read-only" is unchecked. In the Security tab, ensure your User account has "Full Control".
Temporarily disable your antivirus or add an exclusion for the Soundtoys installation directory and your DAW. 2. Reset the Windows Temp Folder