| Component | Recommended Version | Compatibility Notes |
| :--- | :--- | :--- |
| SQL Server Standard | 2017 (CU20 or higher) | Required for >5,000 archive tags. Use Latin1_General_CS_AS collation. |
| SQL Server Express | 2017 (SP1) | For small projects (<2,000 tags). Install before WinCC setup. |
| SQL Server Management Studio (SSMS) | 18.10 or 19.x | Essential for manual backups. Do not install on the same partition as WinCC database files. |
Even with the best compatibility list, issues arise. Here is the field guide.
Create the following folder exceptions in your antivirus policy: wincc 75 sp2 compatibility list best
| Step | Update Pack | Fixed Compatibility Issues | | :--- | :--- | :--- | | 1 | WinCC 7.5 SP2 Update 1 | Windows 10 21H1 DPI scaling on 4K monitors. | | 2 | WinCC 7.5 SP2 Update 3 | Critical. Adds Server 2022 support. Fixes SQL deadlocks on NVMe drives. | | 3 | WinCC 7.5 SP2 Update 6 | Latest stable (as of 2025). Resolves WebUX certificate expiration. |
Verification: After installing Update 6, the version number in About WinCC should read 7.5.7.0. | Component | Recommended Version | Compatibility Notes
Before diving into the compatibility matrix, it is crucial to understand why this version remains a top choice.
If you are planning a new greenfield project or migrating from an ancient WinCC 7.0 or 7.3 system, 7.5 SP2 is the best "stable edge" you can currently deploy. Runtime servers:
| Operating System | Limitation | | :--- | :--- | | Windows 11 Pro/Enterprise | Not officially listed in the original release notes, but many users report success with WinCC Runtime Advanced. Not recommended for Server SCADA. | | Windows Server 2016 | Functions but lacks optimized driver stack for modern PLCs (S7-1500 R/H). |