Yes, it is feasible to transfer windows from an HDD to an SSD for use on a boot drive.
Yes, it is feasible to transfer windows from an HDD to an SSD for use on a boot drive.
It's not advised to paste the whole operating system, as it can cause issues. The safest choice is to download a new version using the Windows key you currently have.
Absolutely, for the complete solution. If you possess a valid key, simply perform a new installation. It's only slightly more effort than the alternatives—you'll need to grasp how to operate, create copies, restore files, etc., but just go through it! - Pete