What I do is go to my computer, click on the folder I want to move stuff from, make the window smaller so it fits half the screen.
Go again to my computer, click on the folder I want to send it to, make that smaller so I then have two folders on the screen side by side.
I then right click on what I want to move and copy, then select the receiving file, right click and paste, once I am sure it is where I want it I delete from the original folder.
Might seem a bit long winded but I never lose stuff that way.
Bogga