Open your Windows search bar and type (Reset WinCC).
Ensure the correct network adapter is selected (the one physically connected to the PLC or server network). 5. Windows Updates and Compatibility
Sometimes, background processes from a previous session don't close properly, preventing a new "basic application" from launching. Close WinCC and all SIMATIC software. a basic application could not be started wincc 75
Run the tool. It will terminate all lingering WinCC processes and clean up the temporary runtime environment. Restart your computer and try opening the project again. 3. Check SQL Server Instance
The most common culprit is a missing or incompatible license. WinCC 7.5 requires specific "RC" (Runtime and Configuration) or "RT" (Runtime) licenses. Open the Automation License Manager (ALM) . Check if your licenses are visible and "OK." Open your Windows search bar and type (Reset WinCC)
Ensure you haven't upgraded to WinCC 7.5 while still holding a 7.4 license; Siemens licenses are version-specific.
If you are working in a client-server architecture, a misconfigured Simatic Shell can cause initialization failures. Go to This PC or File Explorer . Find Simatic Shell in the navigation pane. Right-click it and select Settings . It will terminate all lingering WinCC processes and
Check the Siemens Compatibility Tool online to ensure your Windows "Build" number (e.g., 22H2) is officially supported by WinCC 7.5. If a recent Windows update broke the link, you may need to repair the WinCC installation via the Control Panel. 6. Folder Permissions
Right-click your license and select to ensure it isn't corrupted. 2. Reset the WinCC Project (CCCleaner)