Short story: I bought an SSD drive that I just installed a few days ago. Down below I'll list evertyhing I've done leading up to this conundrum, but basically I've got drives not showing that do exist and drives showing that don't exist. See screenshot below.
My pc physically contains an SSD (500Gb) with a clean Win10 installed (only other programs are MS Office 2013, FF, Chrome) and an older HDD (500Gb) that's been formatted. There's no floppy drive present, hasn't been for years, but it keeps showing even after this clean install.
Explorer: shows a floppy drive that doesn't exist and a drive D: containing a folder named 'boot' that also doesn't exist.
Disk Management: shows some weird partitions I never created, does not show HDD (E: ).
BIOS: shows HDD and SSD, floppy set to 'disabled' by me (during step 11 below). Also mentions CD-rom as boot option, which doesn't exist either (but not so relevant since it isn't bothering me in Win10).
My goal is to have the SSD as drive C: and the HDD as drive D:, and not have any weird ghost drives show up anywhere. I'd love to get some help with this, since what I found on (parts of) the subject yields advice that people are both defending and rejecting - so I've no idea who to believe.
Okay, so for the steps I've taken.
My pc physically contains an SSD (500Gb) with a clean Win10 installed (only other programs are MS Office 2013, FF, Chrome) and an older HDD (500Gb) that's been formatted. There's no floppy drive present, hasn't been for years, but it keeps showing even after this clean install.
Explorer: shows a floppy drive that doesn't exist and a drive D: containing a folder named 'boot' that also doesn't exist.
Disk Management: shows some weird partitions I never created, does not show HDD (E: ).
BIOS: shows HDD and SSD, floppy set to 'disabled' by me (during step 11 below). Also mentions CD-rom as boot option, which doesn't exist either (but not so relevant since it isn't bothering me in Win10).
My goal is to have the SSD as drive C: and the HDD as drive D:, and not have any weird ghost drives show up anywhere. I'd love to get some help with this, since what I found on (parts of) the subject yields advice that people are both defending and rejecting - so I've no idea who to believe.

Okay, so for the steps I've taken.
- build in SSD and format/initialise drive to make it ready for use
- attempt to clone HDD to SSD using Samsung's Data Migration tool, failed
- strip unnecessary programs to make sure data on HDD is less than the available space on SSD
- attempt cloning a 2nd time, failed
- create Win10 install media on newly bought USB
- remove HDD from pc
- use USB to install Win10 on SSD (and use same tool to format SSD immediately prior to install process)
- reboot, change boot order in BIOS so that SSD comes first and not USB
- update Win10 on SSD, make sure everything seems in order
- put the old HDD back in
- check BIOS before launching to make sure the SSD is top of the list
- boot clean Win10 from SSD
- wipe and format HDD in Explorer