This update is part of the legacy lifecycle. Since version 7.0 SP3 is an older release, Update 1 focuses on refining the features introduced in Service Pack 3, ensuring better compatibility with Windows operating systems available at that time (primarily Windows 7 and Windows Server 2008). Purpose of Update 1

| Check | Method | Expected Result | | :--- | :--- | :--- | | | Right-click WinCCExplorer.exe -> Details | 7.0.3072.1 or higher | | Registry | HKLM\SOFTWARE\SIEMENS\WINCC\Version | 7.0.3.1_Update1 | | Channel Diagnosis | Open WinCC Channel Diagnosis | No persistent "SP3 Base Only" warnings |