A Basic Application Could Not Be Started Wincc 75 Best

It sounds like you're encountering the error "A basic application could not be started" in WinCC (version 7.5). This is a known startup issue, typically related to the Basic Process Control or WinCC Basic Application component failing to launch.

After adding your user, you must log off and log back in for changes to take effect. 4. Use the SIMATIC Security Control Tool a basic application could not be started wincc 75 best

7. Contact Siemens Support