Open the Windows Start Menu and navigate to > WinCC Project Duplicator .
Recent operating system updates altering security policies or DCOM settings. Step-by-Step Troubleshooting Network
Here’s a post you can use on a forum, LinkedIn, or a support blog regarding the error in WinCC 7.5 .
The logged-in Windows user may not belong to the mandatory local user groups created during the WinCC installation.
Turn off "Fast Startup" in Windows Power Options, as it can cause SQL services to initialize incorrectly during boot up. A Basic Application Could Not Be Started Wincc 7.5
The error message (or similar variations) in Siemens SIMATIC WinCC 7.5 SP1/SP2 is a common, albeit frustrating, issue that prevents the WinCC Explorer from opening projects or activating runtime. While the message implies a licensing issue, it is often a symptom of underlying problems regarding SQL Server compatibility , Windows updates , or incorrect installation order .
Ensure your Windows user account is a member of the local Siemens TIA Engineer or SIMATIC HMI user groups. What to Do If the Problem Persists If the above steps fail, you may need a clean installation: Completely uninstall WinCC 7.5.
If the Visual C++ Redistributables, .NET Framework, or Siemens prerequisites are not correctly installed, the Windows API calls fail.
The .dcf file contains temporary configuration and connection routing cache data. If it becomes corrupted, it prevents the basic application from loading. Deleting it forces WinCC to regenerate a clean version. Open the Windows Start Menu and navigate to
Click , apply changes, and restart your computer for the new group policies to take effect. 3. Reset the WinCC Project Using the Reset Tool
: Ensure your version of Windows (e.g., Windows 10 22H2) is compatible with your WinCC version. You may need to install a specific service pack or update, such as Update 15 for WinCC 7.5 SP2 , to resolve stability issues on newer Windows builds.
Right-click the application and select . Click the Repeat Settings or Apply Settings button.
: If you recently copied the project from a CD/USB, ensure the files are not "Read-Only". 🛡️ Installation Integrity Disable Antivirus The logged-in Windows user may not belong to
Certain security updates change DCOM or registry permissions, blocking background WinCC executables. Step-by-Step Resolution Guide
Dynamic Link Libraries (DLLs) or background processes like CCProjectMgr.exe may fail to register properly within the operating system. Step-by-Step Resolution Guide
Disable DEP -> Run as Admin -> Check SQL.