A Basic Application Could Not Be Started Wincc 75 〈90% TRUSTED〉

How to Fix "A Basic Application Could Not Be Started" in WinCC 7.5

• Screenshot of the error dialog.
• Windows Event Log entries (exported as .evtx).
• A copy of the WinCC project (if not confidential).
• Output from WinCC Diagnosis Tool.
• List of installed Windows updates and WinCC hotfixes.

1. Use a Siemens-approved OS (Windows 10 LTSC 2019/2021, Windows Server 2019/2022 – not Windows 11 Home/Pro).
2. Disable automatic Windows updates – install updates only after Siemens releases compatibility statements.
3. Regularly backup projects using Project Duplicator.
4. Run WinCC as Administrator by setting the shortcut to "Run as admin" permanently.
5. Maintain a dedicated user account for WinCC with stable permissions.
6. Install all available WinCC 7.5 updates (at least Update 15 or newer).

WinCC 7.5 / "A basic application could not be started" message a basic application could not be started wincc 75

• Regularly update your WinCC 7.5 software to ensure you have the latest patches and fixes.
• Use the WinCC 7.5 documentation and online resources for more detailed troubleshooting guides.

The "A basic application could not be started" error in WinCC 7.5 is a frequent stumbling block often tied to deep-seated configuration issues rather than just a missing file How to Fix "A Basic Application Could Not