I had that exact Harddrive and it didnot allow me to transfer files to my windows laptop. So I just bought a seagate 1.5 TB harddrive that can work between both the platform MAC os and Windows.

http://www.costco.com/Seagate-Slim-1.5TB-Portable-Hard-Drive.product.100095388.html

This one has a software that needs to be installed in both OS and works perfectly.

Hope that helps !

- Thaha chaena