just tried to back up the Windows 7 partition of my Macbook Pro 2-10. First plugged in a Samsung T5 and Windows could jot recognize the ssd. Then, plugged in a LaCie 2TB external HD. After spending four hours to backup, unplugged it and plugged it back to Windows. It stated disk directory corrupted. What is wrong? I Is this Windows problem, my mbp usb port hardwre problem or what? Never have such problems under MacOS. Is this Windows 7 problem? Willsuch thing happen under Windows 10? Now I hesitate to choose Windows machine also.