WinCC relies heavily on a local SQL Server instance. If this instance isn't running or was installed incorrectly, the "basic application" will fail to start.
Troubleshooting WinCC 7.5: "A Basic Application Could Not Be Started" a basic application could not be started wincc 75 best
Before diving into deep technical fixes, ensure your version of Windows 10/11 is compatible with your specific WinCC 7.5 Service Pack (SP). WinCC relies heavily on a local SQL Server instance
If the application is "stuck" due to a previous crash or background process, the built-in reset script can clear hung tasks. a basic application could not be started wincc 75 best
Use the Siemens Compatibility Tool to verify your OS build number against your WinCC version. For example, WinCC 7.5 SP2 might require specific updates (like Update 15) to run on Windows 10 22H2. 2. Run the Reset_WinCC.vbs Tool