: If the computer name contains special characters (like underscores), the SQL instance may install incorrectly, leading to this error .
This error typically occurs when WinCC is unable to launch one of its core background services (e.g., Graphics Runtime, Alarm Logging, Tag Management, or the Cross-Manager). It prevents the runtime project from starting. a basic application could not be started wincc 75 best
| If none of the above works | Action | |----------------------------|--------| | | Run WinCC setup → Select Repair . | | Uninstall/Reinstall WinCC | Use Siemens’ Total Uninstall tool first. | | Restore VM snapshot | If running on a virtual machine (VMware/Hyper-V). | | Contact Siemens Support | Provide error log from C:\ProgramData\Siemens\WinCC\Diagnostics . : If the computer name contains special characters
If the error occurs during PC startup:
Locate the file Reset_WinCC.vbs in the WinCC \Bin folder. Run it to terminate hanging processes and reset the environment, then restart your PC. | If none of the above works |
: If the computer name contains special characters (like underscores), the SQL instance may install incorrectly, leading to this error .
This error typically occurs when WinCC is unable to launch one of its core background services (e.g., Graphics Runtime, Alarm Logging, Tag Management, or the Cross-Manager). It prevents the runtime project from starting.
| If none of the above works | Action | |----------------------------|--------| | | Run WinCC setup → Select Repair . | | Uninstall/Reinstall WinCC | Use Siemens’ Total Uninstall tool first. | | Restore VM snapshot | If running on a virtual machine (VMware/Hyper-V). | | Contact Siemens Support | Provide error log from C:\ProgramData\Siemens\WinCC\Diagnostics .
If the error occurs during PC startup:
Locate the file Reset_WinCC.vbs in the WinCC \Bin folder. Run it to terminate hanging processes and reset the environment, then restart your PC.