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WinCC 7.5 / "A basic application could not be started" message

: An outdated Edge browser can break the WinCC basic installation. Open Edge, go to Help and feedback > About Microsoft Edge , and let it update automatically. Run Reset_WinCC : Navigate to the WinCC installation folder (usually C:\Program Files (x86)\Siemens\WinCC\bin CCCleaner.exe Reset_WinCC.vbs to clear hung processes. Check Computer Name : Ensure your PC name does contain special characters or underscores (