i have a seagate model# srd0sd1 4tb harddrive it is for mac but i had it working on vista but now i cant get it to work on windows 10 it shows that the computer sees it i just cant open it is there something i need to download
right click this pc on desktop
choose manage
in next window, click on disk management in left column
expand window so you can see middle column and show us a screen shot - can share them to imgur and share link here.
If the above is true that it is formatted as HFS+ and you want to access it you could use Paragon's HFS+ for Windows otherwise you will need to reformat it to NTFS.