If the error occurs during PC startup:
: Ensure your version of Windows 10/11 is compatible with WinCC 7.5 SP1/SP2. Users have reported this error when running WinCC on unsupported Windows builds (e.g., Windows 10 22H2 without necessary updates). a basic application could not be started wincc 75 best
: If all else fails, the most reliable "last resort" is a fresh installation of the operating system followed by WinCC 7.5. If the error occurs during PC startup: :
Navigate to the WinCC installation directory (usually C:\Program Files (x86)\Siemens\WinCC\bin ). Locate and run as an administrator. Restart your computer and try opening WinCC again. 3. Check SQL Server (WinCC Instance) a basic application could not be started wincc 75 best