If you must use V5.5 on a Windows 10/11 machine, Siemens experts recommend running it within a Virtual Machine (VM) using a compatible Windows version like Windows 7. Installation Fixes
Even after a successful "fixed" download and install, your work isn't done. To achieve true stability, apply these three immediately: Simatic Step 7 V5 5 Sp2 Download Fixed
Installation of step7 v5.5 sp2 in Windows 10 - Siemens SiePortal If you must use V5
Go to the Siemens Industry Mall, search for "6ES7810-4CC10-0YA5" (STEP 7 V5.5 SP2 full license). You will get a clean digital download link. Simatic Step 7 V5 5 Sp2 Download Fixed
: Users can now create I-devices (Intelligent IO devices) from numerous IO controllers and utilize the PROFINET shared device function.