Myself and a friend both bought one of these. I have a Windows 8 laptop, she had a Windows 7. Neither device works on either machine, and the included driver disc includes a home burnt CD-R with drivers for Windows 98. This is a cheap knock off device. I found a Samsung external drive for $5 more at MicroCenter, it works flawlessly. SAVE YOUR MONEY AND DON'T BUY THIS JUNK.