: If you already own a basic V7.5 or V7.5 SP1 license (RT, RC, or Client), a free upgrade to SP2 is available. You must provide your license number from the Automation License Manager (ALM) or your Certificate of License (CoL). Cumulative Updates
: The most recent maintenance packages for V7.5 SP2 (including Update 1 through Update 20+) are found on the Siemens Support Page (ID 109793460) WinCC V7.5 SP1 Updates wincc 75 download upd
Siemens provides updates through the portal. Updates are typically released as self-extracting executable archives. Official Sources : : If you already own a basic V7