Since V13 SP1 is a "legacy" version today, running it on modern Windows 10/11 hardware requires a virtual machine. The strategy includes downloading a pre-configured VM.
Before we discuss the "where," let's discuss the "why." Searching for a "better download" implies you have already encountered the bad ones. tia portal v13 sp1 professional better download
Navigate to support.industry.siemens.com . Do not use Google’s cached links; go directly to the source. Since V13 SP1 is a "legacy" version today,