I was using Windows XP for years now , just recently upgraded to Windows 7, my windows 7 is installed on first HD and i have connected the 2nd HD , both are on SATA ports. My 2nd HD doesn't have any OS, only full of data. But Windows 7 can't see my second HD, previously on XP i was able to successfully access my 2nd HD. Any settings needs to make in Windows 7? Anyone using 2HD with Windows 7 without any issue? Please Help !