While supported by SP2, some users report installation issues with the bundled SQL Server 2016 unless specific updates or workarounds for disk sector sizes are applied. Siemens SiePortal Database & Office Requirements
To help me tailor this information or provide specific installation steps, let me know: wincc 75 sp2 compatibility list best
2014 SP3 Upd4/Upd5 or newer, or Process Historian 2020. SIMATIC Information Server: 2014 SP3 Upd4/Upd5. 4. WinCC Options and Modules While supported by SP2, some users report installation
For high-availability, mission-critical server applications, Windows Server 2019 Standard (64-bit) is the most stable and recommended choice. While supported by SP2
Are you setting up a or a distributed server-client system ?
The base SP2 ISO (released in early 2020) is the best version. You must apply updates to fix known OS compatibility bugs.