A Basic Application Could Not Be Started Wincc 75 Extra Quality Guide

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

WinCC 7.5 has strict compatibility requirements regarding Windows 10/11 builds and .NET Framework versions.

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 a basic application could not be started wincc 75

The most common culprit is a missing or incompatible license. WinCC 7.5 requires specific "RC" (Runtime and Configuration) or "RT" (Runtime) licenses. Open the Automation License Manager (ALM) . Check if your licenses are visible and "OK."

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 Run the tool

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

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 . If the new project opens

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

Right-click your license and select to ensure it isn't corrupted. 2. Reset the WinCC Project (CCCleaner)

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.