Have just built a new PC and put the OS onto my SSD, however my 3TB WD HDD isnt appearing in My Computer... After reading a few forums people have said about disk management and just selecting the first "new" option (sorry forgotten what it's called). However my HDD has split into 3.. One is 100MB reserved the second is 2TB storage and the third is 746GB.. I can activate the 2TB one but I cant seem to do anything with the 700GB one.. HELP PLEASE 😀