Hi all, I had this same problem in both Windows 7 & 10, I couldn't figure out the problem until I remembered that I had upgraded to the latest version, from what it turns out was a really old version (hence the upgrade). I'd uninstalled and installed at least 3 previous versions with no joy. So just to see if it worked, I uninstalled 0.69, let it restart the PC, ran ccleaner, installed my old (original) version, restarted once more. So I plugged in my EXT3 usb stick and waited with baited breath........