This drive is partitioned into NTFS and FAT32. I'm using a Vantec SATA/IDE to USB adapter to connect the drive. When I connect I hear the USB "clunk, clunk" sound. Disk Management does not see the drive. However, the drive is on the Device Manager and says its working OK. BTW, I spoke to a Dell Tech and was told to contact the mfg., Seagate in this case, and ask if there is a driver needed, or do they have another suggestion. Not a lot of help.