Seagate 1TB Goflex not detected, but shown in "Safely remove hardware" icon in system tray.
I have checked on DiskManagement and EaseUS and uploaded the screenshots as given below.
The HDD is working on my iMac.
I have changed my CDROM drive letter from M: to T: to accommodate any Letter assigning issue but it seems to be not working.
Windows cannot natively mount a Mac file system. You need something like HFS Explorer (freeware) or MacDrive (commercial). HFS Explorer gives you read access only while MacDrive allows both read and write access.