you need a bluetooth adaptor for your computer, then you can do it. the software that came with it can usually do it.
you have to sync your phone with your computer, and then drag the files or send them using the program to your phone, then accept with your phone. you will have to put in a code on both computer and phone for them both to sync, and it can be any numbers you want. but you have to buy a bluetooth dongle or USB type. i recommend Ebay.
*
you need to open the program that came with it, there isnt any other way, because ther's nothink else on windows to do it, when you open the program you will have to do a search and find your phone, then you can send what ever you want to your phone or take things off the phone.