A Basic Application Could Not Be Started Wincc 75 May 2026

This error — "A basic application could not be started" in WinCC (version 7.5) — typically appears when the Siemens HMI/SCADA runtime fails to initialize core system components.

Which of those would you like?

1. Navigate to C:\Program Files (x86)\Siemens\WinCC\bin\
2. Right-click WinCCExplorer.exe (or the specific runtime executable).
3. Select Properties > Compatibility tab.
4. Check "Run this program as an administrator".
5. Click Change settings for all users and repeat.
6. Apply > OK.
7. Restart your PC.

Re-run Security Controller: Open the SIMATIC Security Controller from the Start menu and select "Repeat Settings" to ensure all necessary DCOM and registry permissions are correctly applied. a basic application could not be started wincc 75

The error "A basic application could not be started" in WinCC 7.5 typically indicates an environmental conflict, such as software incompatibility, incorrect user permissions, or a corrupted SQL server instance. 🛠️ Key Troubleshooting Steps This error — "A basic application could not

Simatic Shell Configuration: Incorrect network adapter settings in the Simatic Shell can prevent inter-process communication. Re-run Security Controller : Open the SIMATIC Security

• Run Setup.exe from your WinCC 7.5 installation media → Select Repair.
• After repair, install the latest WinCC 7.5 Update (e.g., Update 17 as of 2025). Siemens frequently fixes basic app startup issues in updates.

This review analyzes the primary causes of this error and evaluates the effectiveness of standard solutions.

1. Open services.msc.
2. Look for SQL Server (WINCC).
3. Ensure the status is Running.
4. If it is running, try restarting the service. If it fails to start, the SQL installation is likely corrupted, requiring a repair of the SQL installation via the WinCC Setup DVD.