The error message "A basic application could not be started" in WinCC 7.5 is intimidating, but it is almost always fixable using the 7 methods above. Start with permission and service restarts, then move to cache clearing and SQL repair. The most overlooked fix is checking the license manager – a surprising number of users find that their license dongle simply came loose or the ALM service crashed.
: This error frequently occurs when attempting to create projects via Remote Desktop (RDP) . Siemens recommends performing development tasks locally rather than through RDP. a basic application could not be started wincc 75 best
Attempt the repair installation first (Step 2). If it fails, prioritize the SQL Server service check. Many users report that simply restarting the SQL Server (WinCC) service resolves the issue temporarily, buying time for a proper reinstall during scheduled downtime. The error message "A basic application could not
Delete temporary runtime files: