I bought a new desktop PC with 2 hard disks: 1 x 256GB SSD with Windows pre-installed, and a clean 1TB HDD.
I have a 1 x 256GB SSD that I have used on an old laptop. I intend to put this into the new desktop pc.
My goal is to dual-boot; Meaning I want to have the option to load either Windows 10 or Ubuntu, but from two different SSD's.
Before putting it in, I'd like to ask the process for this: How do I retain the content of the SSD containing Ubuntu AND Windows 10, but manage to dual-boot them without formatting either, in the new computer? Are there any precautions I must take, or alternative steps that are to be followed in comparison to clean installs?