This external hard drive is as good as the reviews which led me to buy in. It is extremely powerful and fast, and it was detected during install immediately. However, she has a little lack. This recognition I have to repeat every time you restart the computer, for no sooner was the PC in sleep mode or completely out, the plate is "gone". Only when I turn off and back on immediately, it is recognized as a new installation immediately. I use the drive for a backup that starts automatically at a specific time. Because of this small defect, I must now advance always look to see if it really is also available in Windows Explorer, which I find quite annoying. The operating system is Windows 7 64 bit.