I can't use my passport on pc

I have a problem to coonect my passport in my pc. I used this passport with Mac before and now I want to use on pc. How can I connect my pc without losing and data.

Thank you

If the drive is formatted for Mac it isn’t readable on Windows without some software like MacDrive http://macdrive.en.softonic.com/ or HFS Explorer  http://www.catacombae.org/hfsx.html