2.5 Tb green caviar seen as 280 Gb

I only asked about the enclosure beacuse a couple of people didn’t mention until near the end of their post. Most of us don’t partition that often so here is a link so you can double check http://wdc.custhelp.com/cgi-bin/wdc.cfg/php/enduser/std_adp.php?p_faqid=3865  Do make sure you delete the old partition/volume and select GPT. If Windopws partition doesn’t worl maybe a third party tool will work better like EaseUS the free one
  http://www.partition-tool.com/

Joe