For testing only, disable real-time protection on:
If the project is configured to communicate with a PLC (AS) but the communication driver (e.g., SIMATIC S7 Protocol Suite) is missing, incorrectly configured, or the S7OIEH components are broken, the runtime may fail to initialize the connection layer. a basic application could not be started wincc 75
WinCC does not support running projects from network drives, USB sticks, or cloud-synced folders (OneDrive, Dropbox). For testing only, disable real-time protection on: If
WinCC 7.5 / "A basic application could not be started" message For testing only
A locked-down Windows 10/11 IoT or Server installation may block WinCC services.
When WinCC throws this error, it’s usually because one of these foundational components failed to launch, timed out, or encountered a corrupted configuration.