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
If you had a previous failed installation, use a registry cleaner or uninstall utility to remove old Siemens entries. 3. Installation Process Simatic Step 7 V5 5 Sp2 Download Fixed
However, the software was never designed for Windows 10 or Windows 11. It natively supports Windows 7 (64-bit) and Windows XP Professional. Attempting to install it on newer operating systems is where the "fixed" versions became popular. If you must use V5
Log in with your registered Siemens Industry Mall account (export-restricted software registration may be required). Download the ISO or self-extracting executable archive. Step 2: Prepare the Operating System Simatic Step 7 V5 5 Sp2 Download Fixed