A: Basic Application Could Not Be Started Wincc 75

| Step | Action | |------|--------| | | Verify WinCC Services are running: CCBMSvc.exe , CCBasicApplication.exe , SQL Server (WINCC) | | 2 | Check Windows Event Viewer → Application log for .NET or WinCC-specific errors | | 3 | Run CCBasicApplication.exe manually from \bin\ folder to see detailed error | | 4 | Test with a new empty WinCC project (to rule out project corruption) | | 5 | Disable antivirus temporarily (add WinCC folders to exclusions permanently) | | 6 | Reinstall WinCC 7.5 if system files are missing (repair option via Setup) | | 7 | Ensure Windows user is in Siemens WinCC , SQLServer2005MSSQLUSER , and Administrators groups |

If your project uses a different language than your Windows OS, this error can appear.

Go to: C:\Program Files (x86)\Siemens\WinCC\bin (default path). Run or the Reset_WinCC.vbs script. a basic application could not be started wincc 75

: The Windows user must be a member of the "Simatic HMI" user group.

: This is the most notorious culprit. If the MS SQL instance for WinCC is installed incorrectly or has leftover data from a previous version, WinCC Explorer will fail to launch. OS Incompatibility | Step | Action | |------|--------| | |

wincc problem (a basic application could not be started ) - SiePortal

WinCC 7.5 uses a specific SQL instance named WINCC . If this service hangs, the project won't load. Press Win + R , type services.msc , and hit Enter. Locate . : The Windows user must be a member

Ensure your user account is a member of the group. Verify Computer Name :