external hard drive enclosure will not show/load

i bought a trix hard drive enclosure/case for my 2.5 250GB hard drive. I connected everything up and inserted the hard drive usb into my laptop but windows will not show the drive in my computer. It does make the beeping noise telling me its detected the drive and it also shows in device management.

The strange thing is i tried installing linux on it and it did, but the computer will not boot into it from the enclosure, but does from the hard drive. Ive also tried it on 2 computers and both will not assign the drive and give it a drive letter.

i done it :) i used minitool partition wizard and gave it a partition.