WinCC requires the logged-in Windows user to be a member of specific local groups. This is the #1 fix for "Basic Application" errors. Right-click (or My Computer) and select Manage . Navigate to Local Users and Groups > Groups . Ensure your user account is added to: SIMATIC HMI SIMATIC HMI Viewer (if applicable) Administrators
Keep the path as short as possible (e.g., D:\WinCC_Projects\MyProject ). A Basic Application Could Not Be Started Wincc 7.5
You must log out and log back into Windows for these changes to take effect. 2. Check the WinCC Project Path WinCC is sensitive to where your project is saved. WinCC requires the logged-in Windows user to be
Open and click on Simatic Shell (usually at the bottom of the navigation pane). Right-click Simatic Shell and select Settings . Navigate to Local Users and Groups > Groups
Before diving into the fixes, it helps to understand why this happens. The most frequent culprits include:
The "A Basic Application Could Not Be Started" error in WinCC 7.5 is usually a sign of a communication breakdown between the Windows OS and the WinCC runtime engine. By verifying your , checking the SQL Service , and ensuring a clean project path , you can resolve the vast majority of these cases.
If you are working in a client-server architecture, the Simatic Shell must be configured correctly.