A Basic Application Could Not Be Started Wincc 75 May 2026

If you are working in a client-server architecture, a misconfigured Simatic Shell can cause initialization failures. Go to This PC or File Explorer . Find Simatic Shell in the navigation pane. Right-click it and select Settings .

If none of these steps work, the issue might be a corrupted project file ( .mcp ). Try creating a brand new project . If the new project opens, your original project database may need a manual attach/detach in SQL Management Studio.

Open your Windows search bar and type (Reset WinCC).

Run the tool. It will terminate all lingering WinCC processes and clean up the temporary runtime environment. Restart your computer and try opening the project again. 3. Check SQL Server Instance

Ensure the correct network adapter is selected (the one physically connected to the PLC or server network). 5. Windows Updates and Compatibility