I recently acquired an M.2 SSD to increase the speed on my Legion Y720, then I used EaseUS TODO Backup Home to clone my Windows installation from the HDD to the SSD. Everything went normal, as I'm writing this from the recently cloned installation on my SSD, but now I can't format the HDD, as Windows says that it's currently being used! Then I went on to check my Resource Manager and saw that some of the processes being executed are actually on my E:/ (that's the HDD)!. Did I do something wrong? Is there any way to fix it?
Edit: Just tested removing the HDD from my notebook, and I was able to boot and use my Windows just fine with only the SSD, but when I put back the HDD, it still won't let me format it, always saying it is in use.