2Tb Passport 4 partitions 2 Windows 2 Mac Win 7 "sees" only 1 Win Partition

I have a 2 Tb Passport External HD, with 4 x 500 Gb Partitions, 2 Partitions are Mac Format, and 2 are Windows.

Windows 7 only recognizes one of the windows Partitions.

Of course the Mac sees all 4.

Can anyone help me get the Windows machine to see the second Windows partition?

Cheers,

Niguelo 

If you open the Disk manager on the Windows PC, you should be able to see all partitions, you don’t specify what formats you are using (FAT32, HFS+, NTFS, etc) but Windows will not show HFS+ Mac partitions, since it is not natively supported.  

How to access Disk Management in Windows XP, Vista, 7 or 8 to manage hard drives