Kicad (5.1.5)-3 sch freezing

I have installed Windows 10 and the last version of Kicad (5.1.5)-3

The problem Kicad sch freeze and dond’t recognise my old version of project (sch and pcb ) made with with an old version of Kicad.

S.0.S pleause help me :wink:

@Djoss, do you remember what version of Kicad you last used on your older projects?

If this is really an issue with Kicad 5.1.5-3 and Windows 10, I would really recommend you post this issue on Kicad’s Forum. That way the developers of Kicad can become aware of the of the issue and can help you fix it.