Linux server external HDD

Hi all and thanks in advance. I am new to Linux (surprise surprise) and recently set up an old laptop with external HDD attached to run as a media/file server. I am able to map the server home directory through my windows PC, but not the external HDD. Have followed various tutorials without success. The part I don't understand is that I am able to ftp into the mnt\disk1 directory with winscp but not able to map it as a shared drive in file explorer. I have attached screenshots of my samba config file. Any help would be greatly appreciated 🙏🙏

Hi all and thanks in advance. I am new to Linux (surprise surprise) and recently set up an old laptop with external HDD attached to run as a media/file server. I am able to map the server home directory through my windows PC, but not the external HDD. Have followed various tutorials without success. The part I don't understand is that I am able to ftp into the mnt\disk1 directory with winscp but not able to map it as a shared drive in file explorer. I have attached screenshots of my samba config file. Any help would be greatly appreciated 🙏🙏