This also fixed my issue under 10.9.3 Mavericks. I got the error 8058 when trying to copy from one USB drive to another.
I just love useful replies to forum posts. Here's a hint folks if your answer is search google, please do the gentlemanly thing and not reply. Because if that was the answer to every question and no gave an actual answer google wouldn't have any silly results! LOL!1one
<Edited By Host>
Quit all applications. Make sure you are in Finder Menu>Go and hold down Alt/option to reveal LIbrary. click Library and look for Preferences. Open that folder and look for com.apple.finder.plist and its Lockfile. Drag that out of the desktop. If it cant copy there then drag that on documents. After creating a copy and deleting tha file under Preferences Restart and try to copy on your desktop.