i know this has been posted before but my current drive only has about 20gb left of 1tb. i bought i second drive about a year ago but as soon as i plugged it in windows made it my backup drive and now it says it it full. i dont want a backup drive i want to have a empty drive so i can put all my large files on there. i know that you go into disk management or something and then hit format but i get so nervous when deleting data like that. also if i move say half of my data onto the second drive will it speed up my boot times and general use? also i havent defragged in about 4 years should i do that ? thanks .