Problems with SSL certificate and WordPress (no replies)

Hello!

I have had WordPress on my Wamp Server.
Now I installed succesfully SSL certificate to my server.

WordPress's frontpage looks normally and I can see that SSL certificate works.
But all another pages says: "404 Page not found".

I can still see my pages when I change https:// --> http:// from beginning of the url.
But on https:// everything else except frontpage says 404.
What could I do?

PB