WinCC 7.5 / "A basic application could not be started" message
Sometimes Windows updates revert security exceptions required by Siemens software. Search for "Security Control" in your Start menu. Right-click and "Run as Administrator". Click "Repeat Settings". a basic application could not be started wincc 75 best
If the error persists, the SQL instance may be corrupted. Users often find success by completely uninstalling WinCC and the manual removal of all MS SQL Server components before reinstalling. Community Insights on Fixes WinCC 7