network drive is not deleted on windows PC

I'm trying to connect my Linux machine and Windows through samba. As I changed Linux machine to the new one (but both of my Linux machines use same IP and user info), I want to delete the old one. But when I try to delete, there's an error pop-up which says that it's not existing.

Also, when I open the cmd and command 'net use' to check the existing network drive, there's no information about the old one.