When copying (or moving) multiple files using drag-and-drop in Windows XP, the copying process terminates if one files fails to copy. This is extremely annoying when copying a directory tree, and one has no real indication where exactly the process stopped, and what parts of the batch were not copied.
How can I prevent Windows from stopping the process upon one failure (and possibly get an indication for a problem)? It is easy to run a dir-compare program to see which files are missing after the fact.
Short answer is – you can’t.
You’re much better off using an alternative like XCopy or Robocopy from the command line if you want to reliably copy a lot of files and recover from errors along the way.