So I had done all of this. New Windows Boot is listed as priority 1 in BIOS. However in the advanced settings it just shows Windows 10, and no other options. I can’t delete anything off the old drive. I’ve changed where everything new saves, but when I try to download a program (like iTunes or Google Chrome) it downloads to the C drive (old drive) or says that this must be installed to a system disk, and asks me to choose one, and the only option is the completely full C drive. It’s driving me nuts! I downloaded a partition manager and was able to move the recovery partition and then expand the new D drive. So plenty of room there, but can’t get programs to save there period, and certainly not by default.
