If you've got the latest Connectivity Kit it's very simple.
As explained in the readme file, just :
- extract the downloaded zip content to a folder on your computer (available on Windows through a right-click on the downloaded file)
- drag & drop all HP-Prime files from that folder to your calculator line in the Connectivity Kit window
The calculator may freeze/crash each time you transfer around 6MB.
Just reset it and go on with the missing files.
Did this solve your problem ? If not, can you tell us more about it ?
Thanks.