where can i download the last Safari to my PC?

Apple stopped supporting Safari for Windows couple of years ago.

Use another browser of your choice.

Best.

Apple no longer supports Safari for Windows.

You can't anymore. Safari for Windows was discontinued several years ago. Its no longer possible to download from Apple, and even if it was, it hasn't seen updates in years, and as such is very insecure, and cannot support the latest Web site technologies.

Use something more modern like Firefox or Chrome instead.