D/loaded files to Pport WD and now I get a window

I   downloaded docs and pict to Pport WD then a window pops up asking if I want to "Setup Drive or backup files.

I would have liked to “setup drive” first but now its too late (or is it?  I  dont want to wipe my files off  passport)

I successfully saved docs to PportWD.

The sourse computer now has the blue screen of death (error 2000-0142)and I can not load disk from cd drive (wont take it)