When you install robot 23.4.5 on Windows Server 2025 the controller detects Windows server 2012 instead.
This is visible in the controller GUI and OC inventory
Known issue with robot 23.4.6 and earlier
This issue is currently being fix and under system testing. The tentative is to include the fix in the upcoming robot with 23.4 CU7 release.
F156964: Replace WMIC usage in robots with PowerShell for WMI and fix Windows 2025 defects