A Basic Application Could Not Be Started Wincc 7.5 Jun 2026

This guide addresses the common error in Siemens WinCC 7.5.

The "A basic application could not be started" error in WinCC 7.5 is almost always related to rather than your project itself. Stay calm, work through the checklist above, and you’ll likely have your HMI application running again within 30 minutes.

Modern Windows (10/11) restricts permissions aggressively. The "basic application" might be failing because it lacks write access to system logs or temp files.

Close all WinCC applications and run the Reset_WinCC.vbs script located in the WinCC installation directory (usually under Siemens/WinCC/bin ). Restart your computer after it finishes .

Verify that the is not blocking "CCProjectMgr.exe" or "CCRemoteService.exe". When All Else Fails: The "CCCleaner" Tool