Let's take a quick look at a step-by-step guide detailing how to turn an SSD into a boot drive for your new or existing computer.

That's where it says I can't change the drive letter for the boot drive. I just found an article on the technet though that shows how to do it. I'll post back with how it worked out ...

To change default hard drive from C: to D: in Windows 11/10, change the default save location for apps and files, move user folders to D:, etc.