So I just built a new pc which has a 2tb hdd in it. I currently have not installed my m.2 ssd because I do not have the screwdriver for that specific screw. I installed windows 10 in the hard drive so to make sure everything else is working and do benchmarks etc. the question is, is it possible to install windows 10 once again in the ssd without touching anything I already installed in the HDD. Also, if it is possible to have another copy of windows system file in the SSD without deleting the previous copy of them in the HDD, can I do some clean up in the HDD to free some space in the drive? Thanks for any advice/help.