The Simatic Security Controller failed to configure security settings during installation. Top 6 Solutions for WinCC 7.5 Startup Errors 1. Install Updates (The Most Frequent Fix)
Open the "CCCleaner" tool (found in the WinCC installation directory under bin).
To ensure your SCADA environment remains stable over the long term, implement these standard engineering habits: a basic application could not be started wincc 75 best
WinCC 7.5 / "A basic application could not be started" message
Install WinCC 7.5 SP2 Update 15 (or the latest available update) . The Simatic Security Controller failed to configure security
Open Services.msc in Windows, find SQL Server (WINCC) , and ensure it is running.
Installing older WinCC 7.5 base versions or early Service Packs (SP1/SP2) on modern Windows 10/11 updates (like 22H2) regularly triggers this crash. To ensure your SCADA environment remains stable over
WinCC relies entirely on SQL Server Express for project data. If SQL cannot initialize, the application fails.
WinCC 7.5 SP2 heavily validates its network pathing via the SIMATIC WinCC TM Naming Service. If a computer is offline or unattached to an active network switch, this background service can time out, throwing the basic application error. Step-by-Step Technical Solutions