I had an old laptop, from which I moved the drive to an external enclosure. (Lets call this drive X) I have a new laptop on which I have installed Windows on the internal drive (Lets call is drive C). I recently got a new bigger external drive (Lets call it drive Y). I moved all the folders from external drive X to external drive Y. Nothing was moved to/from drive C. Since then my profile is FUBAR. My quick-launch icons are gone. My Wifi & VPN network settings are lost. My login-screen picture is gone. I can recover all of this, my question is just if anyone could explain to me why/how this happened so that I can avoid it happening again.