: Open the Automation License Manager (ALM) and ensure your license (RC for configuration or RT for runtime) is correctly activated and visible. If the license is missing or invalid, the "basic application" will fail to initialize.
If you want to dive deeper into a specific step, let me know: a basic application could not be started wincc 75 best
This error is frequently caused by operating system updates breaking unpatched Siemens software. For instance, running on a modern operating system like Windows 10 Pro 22H2 requires specific patches to function. : Open the Automation License Manager (ALM) and
Always run the WinCC installer “as administrator.” If your PC is part of a domain, consider temporarily removing it from the domain, installing WinCC, and then rejoining the domain after successful installation. For instance, running on a modern operating system
Ensure that the Windows Firewall allows traffic through the ports required by SQL Server (Port 1433/1434) and the Simatic Shell. Prevention and Best Practices
Your Windows user account must belong to specific local groups created during the WinCC installation. Right-click the Start Menu and select . Navigate to Local Users and Groups > Groups .