To remove OPC Expert’s files and folders, simply delete all files and folders in OPC Expert’s folder (except “OPC Expert.exe”). Afterward, run “OPC Expert.exe” again. Details for every steps are below.
- Uninstall all running OPC Expert services
- Option1: Use OPC Expert’s System Tray icon
- Option 2: Use OPC Expert’s Tools menu
- In OPC Expert’s main menu, select (Tools > Options…)
- In “Options” dialog box, select tab “Services & Servers”

- In dialog box “OPC Expert Servers”, uncheck all checkboxes as below

- Press button “OK” and close OPC Expert
- After uninstalling all OPC Expert services and closing OPC Expert, delete all OPC Expert files and folders
- Refer to folder “C:\Program Files\OPC Expert”
- Delete all files except “OPC Expert.exe”
- Delete all folders (it is acceptable to for folder “General OPC Files” to remain)
- Start OPC Expert again
The procedure above should clear all OPC Expert errors.
