Delete any files with the extension .dcf . These are temporary configuration files that WinCC regenerates automatically. Ensure the project folder is not "Read-Only."
The “A basic application could not be started” error in WinCC 7.5 is almost always due to permissions, antivirus blocking, license issues, or SQL Server problems. By systematically working through the steps above – with special attention to Event Viewer, antivirus whitelisting, and license validation – the issue can be resolved without reinstalling the entire engineering environment. a basic application could not be started wincc 75 best
: Close all WinCC applications and run the Reset_WinCC.vbs tool located in the WinCC installation directory . Delete any files with the extension
