Wincc 7.5 Sp2 Compatibility List _verified_ -
For the most stable installation, users should install the base 7.5 version followed by Service Pack 2 and the latest cumulative updates (currently up to Update 21 for some regions) to ensure compatibility with newer Windows 10/11 builds. Siemens SiePortal
: Updates for V7.5 SP2 are cumulative. For example, installing includes all fixes from Updates 1 through 13. wincc 7.5 sp2 compatibility list
Do not mix versions. If your plant uses WinCC 7.5 SP2 on Windows Server 2022, ensure your engineering station matches that exact OS. Mixing Windows 11 engineering with Windows Server 2022 runtime is unsupported and often leads to inconsistent database schemas. For the most stable installation, users should install

