WinCC is very particular about which user accounts are allowed to run it. The logged-in Windows user . This is a local Windows group created during the WinCC installation. If a user is not part of this group, or if the group itself is damaged, WinCC will block basic applications from starting. This is especially common in corporate environments with domain policies that restrict local group memberships.
The .mcp (Master Control Program) file or temporary project databases are locked or corrupted. A Basic Application Could Not Be Started Wincc 7.5
Navigate to the default Siemens diagnostic folder: C:\Program Files (x86)\SIEMENS\WinCC\Diagnostics\ WinCC is very particular about which user accounts
Yes. Overactive security software can block required processes or delete installation files. Always temporarily disable them during installation and consider adding WinCC to your antivirus' exclusion list. If a user is not part of this
By following these best practices, you can minimize the risk of encountering the "A basic application could not be started" error in WinCC 7.5 and ensure smooth operation of your HMI application.
Ensure the status is . If it is stopped, right-click and select Start . Set the Startup Type to Automatic . 5. Check Simatic Shell Settings