If the project was not closed properly, the SQL databases might be locked or corrupted. Close WinCC. Navigate to your project folder. Delete any files with the extensions (lock files).
This guide covers the root causes of this error and provides step-by-step instructions to get your SCADA system back online. Primary Root Causes A Basic Application Could Not Be Started Wincc 7.5
WinCC communicates internally through a virtual network layer called Simatic Shell. If it binds to the wrong network adapter, local services will fail to initialize. Open or Windows File Explorer. If the project was not closed properly, the
A small status window will appear, terminating stuck processes and resetting temporary folder permissions. Wait until it finishes and closes automatically. 4. Delete the Project's Temporary .DCF File Delete any files with the extensions (lock files)
Don’t let the vague wording of “A basic application could not be started” intimidate you. In 90% of cases, turning off DEP for those specific WinCC .exe files solves the issue instantly.
Follow these diagnostic steps in order to isolate and resolve the issue. 1. Verify Siemens Windows User Groups