Running TIA Portal V10.5 SP2 means you are using Windows 7 (or XP) and S7-1200/300 controllers with very old firmware.
Security Risk: Connecting a PC with Windows 7 and TIA V10.5 to a modern network is a severe cybersecurity vulnerability. Tia Portal 10.5 Sp2 Extra Quality Download
Recommendation: Migrate your project to TIA Portal V17 or higher. Siemens provides migration tools that convert V10.5 projects to modern formats. Running TIA Portal V10
Searching for cracked or “extra quality” repacks on torrent sites or file hosts is extremely dangerous for three reasons: Tia Portal 10.5 Sp2 Extra Quality Download
This is the only official source. Even without a warranty contract, Siemens often provides older versions for download.