Are you saying you deleted your files to your Recycle Bin, but when you went to restore them,they did not all restore? Your Recycle Bin size may not be large enough to accommodate them all and so they were permanently deleted. Too late for now, but you can adjust this by right clicking on RB and setting limits. It's independent of your hd size.
If they are all gone, but you do have the files on iPhone you can purchase a third party solution such as
http://www.copytrans.net/ which will transfer files to your PC. I had to do that when my hd failed.
Hope that helps.
Sally