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A Basic Application Could Not Be Started Wincc 7.5 Review

A Basic Application Could Not Be Started — WinCC 7.5

Step 3: Check the Project Path

WinCC 7.5 is notorious for path sensitivity.

  • Do not use: C:\Users\YourName\Desktop\WinCC Projects\New Project
  • Do use: C:\WinCC_Prj\MyProject

Action: Move your project to a root directory with a short, alphanumeric-only path. Then, use WinCC Explorer → File → Open to browse to the new location.

Step 7: Run the WinCC 7.5 Diagnosis Tool

Run the WinCC 7.5 diagnosis tool to identify any potential issues. The diagnosis tool can help identify problems with the configuration, system environment, or database. A Basic Application Could Not Be Started Wincc 7.5

Step 3: Check the Configuration

Check the WinCC 7.5 configuration to ensure that it is set up correctly. Verify that the project settings, device configurations, and other parameters are correctly configured.

🛠️ Suggested Fixes (try in order):

  1. Run as Administrator
    Right-click on WinCC Explorer → Run as administrator A Basic Application Could Not Be Started — WinCC 7

  2. Restart SQL Server (WinCC)

    • Open Services.msc
    • Restart SQL Server (WINCC) and SQL Server Agent (WINCC)

  3. Check Licensing

    • Open Automation License Manager
    • Ensure licenses are installed and accessible
    • Look for missing or outdated licenses (e.g., WinCC RC/RT)

  4. Reinstall/Repair WinCC

    • Go to Control Panel → Programs → Siemens WinCC → Repair

  5. Disable Antivirus Temporarily

    • Some AV tools block WinCC’s basic application launcher

  6. Check Windows Event Viewer

    • Look for application errors under Windows Logs → Application for more clues

  7. Reboot & Retry

    • A full restart of the PC can resolve locked database connections

Windows 10 vs. Windows Server 2019

  • Windows 10 Pro/Enterprise (21H2, 22H2): WinCC 7.5 works best on LTSC (Long-Term Servicing Channel) versions. Regular Windows 10 updates sometimes break WinCC. Use sfc /scannow to repair system files.
  • Windows Server 2019/2022: Ensure Desktop Experience is installed. A Server Core installation will NEVER run WinCC.