Windows 7 SP1 (32/64-bit), Windows Server 2008 R2 SP1, or Windows XP SP3 Multi-Core CPU @ 2.4 GHz

This specific version introduced several major shifts for the WinCC platform: WinCC 7.2 Installation - SiePortal

If you manage to get the installer, ensure your hardware and OS are compatible, as WinCC 7.2 does not support modern operating systems like Windows 10 or 11. Siemens SiePortal Recommended Requirement Operating System

. They can often provide the installation medium (DVD or ISO) for customers who hold a valid license but have lost their original media. Original License Holder: If you have a Software Update Service (SUS)