Are you using options like WebNavigator or Process Historian? Siemens SiePortal
The following hardware components are compatible with WINCC 7.5 SP2:
Are you setting up a or a distributed server-client system ? wincc 75 sp2 compatibility list best
(Versions 1909, 2004, 20H2, 21H1, 21H2, and 22H2)
If you are installing on Windows Server, ensure that the "User Account Control (UAC)" is set correctly and that you are using local administrator rights to prevent installation blocks. Are you using options like WebNavigator or Process Historian
: Professional, Enterprise, LTSB 2015/2016, and LTSC 2019.
For standalone stations or clients that do not require the full SQL Server engine, WinCC 7.5 SP2 supports SQL Server Express 2016, 2017, and 2019 . However, be aware of the database size limitations inherent to the Express edition (typically 10GB max). : Professional, Enterprise, LTSB 2015/2016, and LTSC 2019
Siemens qualifies WinCC V7.5 SP2 for specific 64-bit versions of Microsoft Windows. Home or Starter editions are completely unsupported due to missing security and networking components. Windows 10 (64-bit)
Always verify specific build numbers (e.g., Windows 10 21H1 or 22H2) through the Siemens Compatibility Tool