: Siemens released TIA Portal V13 SP2 specifically to provide official Windows 10 support.
If you must stay on SP1, ensure you use the latest cumulative update (Update 9) rather than Update 4, as updates are cumulative and include all previous fixes. Siemens SiePortal Why V13 SP2 is "Better" than V13 SP1 Update 4 Operating System Support: siemens tia portal v13 sp1 update 4 better 2021
: The communication module was revamped, solving persistent issues where TIA would crash if a PC went into sleep mode while connected to a PLC. The "Stepping Stone" for Modern Migration : Siemens released TIA Portal V13 SP2 specifically
: Projects from older versions often must be converted to V13 SP1 before they can be opened in newer versions like V15.1 or V17. The "Stepping Stone" for Modern Migration : Projects
“Update 4 saved us. Our WinCC Comfort panels had random disconnects until we applied Update 4. Later versions broke our custom VB scripts.” –