When your DAW scans for installed plug-ins, the Soundtoys software checks for its necessary folders. If it can't find or write to its root folder at that moment, it will display the error and may be blacklisted by your DAW, preventing it from being loaded.
due to permission conflicts, non-standard folder paths, or interference from security software Top Troubleshooting Steps Check Temp Folder Locations (Windows) : A common cause for this error is having your system's When your DAW scans for installed plug-ins, the
Manually delete the folder at C:\Users\Public\Documents\Soundtoys . Despite you being the admin of your computer,
Despite you being the admin of your computer, many Windows applications do not run with full system privileges by default. The SoundToys installer needs to write to the ProgramData folder (a protected system directory). If the installer isn't "Run as Administrator," Windows may block the folder creation. non-standard folder paths