A Basic Application Could Not Be Started Wincc 7.5 !!top!! Jun 2026

Sometimes the internal project status gets "stuck" in a running state even when it's closed. Close WinCC completely.

: If "Compression to save disk space" is active on your C: drive, it can prevent SQL from starting. Deactivate compression for the WinCC project folder or the entire drive .

Can you open , or does the error happen to all of them? A Basic Application Could Not Be Started Wincc 7.5

Exclude the Siemens installation paths ( C:\Program Files (x86)\Siemens\ ) and your project folders from real-time antivirus scanning.

Click , apply changes, and restart your computer for the new group policies to take effect. 3. Reset the WinCC Project Using the Reset Tool Sometimes the internal project status gets "stuck" in

Before diving into the fixes, it helps to understand why this happens. The most frequent culprits include:

: An outdated Edge browser on Windows 10 (version 20H2) can disrupt the SQL Server installation used by WinCC. Deactivate compression for the WinCC project folder or

Resolving this issue requires fixing underlying database corruption, component registration, or Windows compatibility conflicts [1, 2]. Primary Causes of the Error

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