WinCC relies on a dedicated instance of Microsoft SQL Server to manage tag logging, alarms, and project data. If this instance is stopped or corrupted, WinCC cannot launch its project manager. Open the panel ( services.msc ). Scroll down to find the service labeled SQL Server (WINCC) .
Follow these verified steps in order to diagnose and resolve the error. Step 1: Verify Windows User Group Memberships
Ensure your current Windows user account is a member of the following groups: SIMATIC HMI SIMATIC HMI CS Administrators
Navigate to the WinCC installation folder (typically .../Siemens/WinCC/bin ). Run the file or CCCleaner.exe . Restart your computer and try opening the project again. 5. Check Computer & SQL Naming a basic application could not be started wincc 75
By following these steps, you should be able to overcome the "basic application could not be started" error in WinCC 7.5 and successfully launch your project.
If none of these steps work, the issue might be a corrupted project file ( .mcp ). Try creating a brand new project . If the new project opens, your original project database may need a manual attach/detach in SQL Management Studio.
Reopen WinCC; it will regenerate the .dcf file automatically. 4. Configure Simatic Shell WinCC relies on a dedicated instance of Microsoft
WinCC requires the active Windows user to belong to specialized local service groups to communicate with the SQL database and internal processes.
WinCC 7.5 is sensitive to Windows builds. Ensure you are on a supported version of Windows 10/11 or Windows Server as specified in the Siemens Compatibility Tool.
Open the and ensure that the required License for WinCC V7.5 is activated. If the license is missing or damaged, the "basic application" will fail to start. Deep Fix: Reinstalling WinCC and SQL Scroll down to find the service labeled SQL Server (WINCC)
What Causes "A Basic Application Could Not Be Started" in WinCC 7.5?
Try the following solutions in order. Most cases are resolved by steps 1–3.
If you are working with , encountering the error message "A basic application could not be started. Please check your software license" can be a major roadblock. This error typically triggers when you try to open the WinCC Explorer or activate a project. 1. Verify License Status