If you have absolutely no space on your hard drive to transfer over try CCleaner (used to be Crap Cleaner, more family friendly name) to clean out all forms of temporary files. Just make sure that if you have password info and stuff you want saved be sure to uncheck its option. I have seriously cleaned out computers with it that had over 2gb of useless temp. stuff.
If that doesnt work, reformat the jumpdrive, and try again.
You may also need to make more space avaliable on the harddrive, before anything is going to work.
i have never had that problem, and mine is a sandisck jumpdrive.
not helpful