I am upgrading from a 2tb hdd to a 250gb as a boot drive. I already backed up most the of important stuff I need, I do not intend on cloning. My question is, when I reinstall windows 10, will my previous data still be on the hdd, or will windows automatically delete all of it. I want it so that I get full 2tb from the hdd, not 1tb (i am using 1tb as of right now). If windows does not delete the 1tb of storage, how can I delete all of the data?