With Win7 I used to open one external drive, then through My computer locate the other drive. I would have each drive on its own window. I could then select relevant files on one drive copy and paste into the other drive. With Win10 if I click on File explorer I can open one external drive, where can I locate the other drive to put in a separate window. If I click on the other drive, it just opens it in the same window. Win7 and previous versions used to be so simple.