Corel X4 on W10: Why I must BUY another version??

Hallo,

i write from Italy. I use Corel X4 on new pc and it have Windows 10: You know, don't run.

I am outraged : Why should I buy back a new corel if my works perfectly? I did not know there was a deadline for a corel! I do not know whose fault it was or do not care , but I hope that the community give a solution . thank you all