A Basic Application Could Not Be Started Wincc 75 -

Right-click the Windows Start menu and select . Navigate to Local Users and Groups > Groups . Double-click the group named SIMATIC HMI .

Locate and delete any files ending with the extension. These are temporary cache files that WinCC will automatically recreate cleanly upon its next launch. Run Reset-WinCC

Cross-reference your build with the official Siemens Compatibility Tool.

Before diving into a full reinstallation, try these common "reset" procedures: Reset_WinCC.vbs a basic application could not be started wincc 75

If the above steps fail, you may have a corrupted SQL instance. As suggested on Reddit/PLC and Siemens forums , a complete reinstallation is required.

Whether this issue happens with or only when trying to open a specific existing project . Share public link

: In WinCC V7.5 SP2, the terminal bus adapter must be active and connected to a switch/router; otherwise, the startup may hang. User Group Permissions : The logged-in Windows user must be a member of the local SIMATIC_HMI user group. Troubleshooting Checklist Right-click the Windows Start menu and select

Ensure the status is set to and the startup type is set to Automatic . If the service is stopped, right-click it and select Start .

To avoid encountering this error in the future:

Summary of likely causes

Check for Event ID 10010 in Windows Event Viewer. Ensure DCOM is enabled and configured correctly. ⚠️ Advanced Troubleshooting

Unlike a simple syntax error or a missing tag, this message indicates a . WinCC 7.5 relies on a suite of background services, OPC servers, and SQL databases to function. The "basic application" refers to the core runtime engine (often linked to CCLicense.exe , RedundancyServer.exe , or the SQL Server instance).

Try these steps in order to resolve the issue without needing to reinstall the software. 1. Run the Reset_WinCC.vbs Tool Locate and delete any files ending with the extension