A Basic Application Could Not Be Started Wincc 75 __exclusive__ May 2026

Sometimes, background processes from a previous session don't close properly, preventing a new "basic application" from launching. Close WinCC and all SIMATIC software.

Ensure the status is . If it is stopped, right-click and select Start . Also, ensure the SQL Server Browser service is running. 4. Simatic Shell Configuration

Check the Siemens Compatibility Tool online to ensure your Windows "Build" number (e.g., 22H2) is officially supported by WinCC 7.5. If a recent Windows update broke the link, you may need to repair the WinCC installation via the Control Panel. 6. Folder Permissions a basic application could not be started wincc 75

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

Open your Windows search bar and type (Reset WinCC). If it is stopped, right-click and select Start

Ensure you haven't upgraded to WinCC 7.5 while still holding a 7.4 license; Siemens licenses are version-specific.

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. If none of these steps work

If your WinCC project folder was moved or copied from another machine, the "basic application" might fail because it doesn't have permission to write to the project database. Right-click your project folder. Go to Properties > Security . Ensure the "SIMATIC HMI" user group has Full Control .